Maharashtra Board SSC Class 10 Maths 2 Question Paper July 2023 with Answers Solutions Pdf Download.
SSC Maths 2 Question Paper July 2023 with Answers Pdf Download Maharashtra Board
Time: 2 Hours
Total Marks: 40
Note:
- All questions are compulsory.
- Use of calculator is not allowed.
- The numbers to the right of the questions indicate full marks.
- In case of MCQ’s [Q. No. 1(A)] only the first attempt will be evaluated and will be given credit.
- For every MCQ, the correct alternative (A), (B), (C) or (D) with sub-question number is to be written as an answer.
- Draw proper figures for answers wherever necessary.
- The marks of construction should be clear. Do not erase them.
- Diagram is essential for writing the proof of the theorem.
Question 1.
(A) For each of the following sub-question four alternative answers are given. Choose the correct alternative and write its alphabet: [4]
i. The volume of a cube of side 10 cm is ________. (D)
(A) 1 cm³
(B) 10 cm³
(C) 100 cm³
(D) 1000 cm³
Answer:
(D) 1000 cm³
ii. A line makes an angle of 30o with positive direction of X-axis, then the slope of the line is ________. (C)
Answer:
C
iii. ∠ACB is inscribed in arc ACB of a circle with centre O. If ∠ACB = 65°, find m(arc ACB) : (D)
(A) 65°
(B) 130°
(C) 295°
(D) 230°
Answer:
(D) 230°
iv. Find the perimeter of a square if its diagonal is 10√2 cm. (D)
(A) 10 cm
(B) 40√2 cm
(C) 20 cm
(D) 40 cm
Answer:
(D) 40 cm
Hints:
i. Volume of a cube = (side)³ = (10)³ = 1000 cm³
ii. Angle made with the positive direction of X-axis (θ) = 30°
Slope of line (m) = tan θ
∴ m = tan 30° = \(\frac{1}{\sqrt{3}}\)
iii. m∠ACB = \(\frac{1}{2}\) m(arc AB) …[Inscribed angle theorem]
∴ m(arc AB) = 2 m∠ACB
= 2 × 65 = 130°
m(arc ACB) = 360° – m(arc AB)
= 360° – 130° = 230° …[Measure of a circle Is 360°]
iv. In ∆ABC, ∠B = 90°, and ∠BAC = ∠BCA = 45°
∴ Perimeter of square = 4 (AB) = 4 x 10 = 40 cm
Question 1.
(B) Solve the following sub-questions: [4]
i. In the following figure, ∠ABC = ∠DCB = 90°, AB = 6, DC = 8, then \(\frac{\mathrm{A}(\triangle \mathrm{ABC})}{\mathrm{A}(\triangle \mathrm{DCB})}\)=?
ii. In the following figure, find the length of RP using the information given in ∆PSR.
iii. What is the distance between two parallel tangents of a circle having radius 4.5 cm?
iv. Find the co-ordinates of midpoint of the segment joining the points A(4, 6) and B(-2, 2).
Answer:
i. ∆ABC and ∆DCB have same base BC.
ii. In ∆PSR, ∠S = 90°, ∠P = 30° …[Given]
∴ ∠R = 60° …[Remaining angle of a triangle]
∴ ∆PSR Is a 30° – 60 – 90° triangle.
RS = \(\frac{1}{2}\)RP …[Side opposite to 30°]
∴ 6 = \(\frac{1}{2}\)RP
∴ RP = 6 × 2 = 12
∴ RP = 12 units
SMART TIP
To verify our answer, we use Pythagoras Theorem. If /(SR)² + /(SP)² = /(PR)², then our answer is correct.
/(SR)² + /(SP)² = (6)² + (6√3)² = 36 + 108 = 144
/(PR)² = (12)² = 144
∴ /(SR)² + /(SP)² = /(PR)²
Hence, our answer is correct.
iii. Distance between two parallel tangents of a circle
= diameter of the circle
= 2 × radius
= 2 × 4.5 cm
= 9 cm
iv. Let A(x1, y1) = A(4, 6)
B(x2, y2) = B(-2, 2)
Let the co-ordinates of the midpoint be P(x, y).
∴ By midpoint formula.
∴ The co-ordinates of the midpoint of the segment joining A(4, 6) and B(-2, 2) are (1, 4).
Question 2.
(A) Complete the following activities and rewrite it (any two): [4]
i.
In the above figure, circle with centre D touches the sides of ∠ACB at A and B. If ∠ACB = 52°, complete the activity to find the measure of ∠ADB.
Activity:
In □ABCD,
∠CAD = ∠CBD = □° ….Tangent theorem
∴ ∠ACB + ∠CAD + ∠CBD + ∠ADB = □°
∴ 52° + 90° + 90° + ∠ADB = 360°
∴ ∠ADB + □° = 360°
∴ ∠ADB = 360° – 232°
∴ ∠ADB = □°
ii.
In the above figure, side of square ABCD is 7 cm with centre D and radius DA sector D-AXC is drawn.
Complete the following activity to find the area of square ABCD and sector D-AXC.
Activity:
Area of square = □ …..formula
= (7)²
= 49 cm²
iii. Complete the following activity to prove cot θ + tan θ = cosec θ × sec θ.
Activity:
L.H.S. = cot θ + tan θ
∴ L.H.S. = R.H.S.
∴ cot θ + tan θ = cosec θ × sec θ
(B) Solve the following sub-questions (Any four):
i. If cos θ = \(\frac{3}{5}\), then find sin θ.
ii. Find slope of line EF, where co-ordinates of E are (-4, -2) and co-ordinates of F are (6, 3).
iii.
In the above figure, ray PQ touches the circle at point Q.
If PQ = 12, PR = 8, find the length of seg PS.
iv.
In the above figure, ∠MNP = 90°, seg NQ ⊥ seg MP. MQ = 9, QP = 4. Find NQ.
v.
In the above figure, if AB ǁ CD ǁ EF, then find x and AE by using the information given in the figure.
Answer:
(A) i. In □ABCD,
ii.
iii. L.H.S. = cot θ + tan θ
∴ L.H.S. = R.H.S.
∴ cot θ + tan θ = cosec θ × sec θ
(B) i.
ii. E (x1, y1) = E (-4, -2) and F (x2, y2) = F (6, 3)
Here, x1 = – 4, x2 = 6, y1 = – 2, y2 = 3
iii. Ray PQ is a tangent to the circle at point Q and seg PS is the secant. …[Given]
∴ PR × PS = PQ² …[Tangent secant segments theorem]
∴ 8 × PS = 122
∴ 8 × PS = 144
∴ PS = \(\frac{144}{8}\)
∴ PS = 18 units
iv. In ∆MNP, ∠MNP = 90° and
seg NQ ⊥ seg MP …[Given]
∴ NQ² = MQ × QP …[Theorem of geometric mean]
∴ NQ = \(\sqrt{MQ\times QP}\) …[Taking square root of both sides]
= \(\sqrt{9\times4}\) = 3 × 2
∴ NQ = 6 units
v. line AB ǁ line CD ǁ line FE …[Given]
∴ x = 6 units
Now, AE = AC + CE
= 12 + x
= 12 + 6
= 18 units
∴ x = 6 units and AE = 18 units
Question 3.
(A) Complete the following activities and rewrite it (any one): [3]
i.
In the above figure, X is any point in the interior of triangle. Point X is joined to vertices of triangle seg PQ ǁ seg DE, seg QR ǁ seg EF. Complete the following activity to prove seg PR ǁ seg DF.
Activity:
In ∆XDE, PQ ǁ DE
∴ seg PR ǁ seg DF …Converse of basic proportionality theorem
ii.
A, B, C are any points on the circle with centre O.
If m(arc BC) = 110° and m(arc AB) = 125°, complete the following activity to find m(arc ABC), m(arc AC), m(arc ACB) and m(arc BAC).
Activity :
(B) Solve the following sub-questions (any two): [6]
i. The radius of a circle is 6 cm, the area of a sector of this circle is 15 π sq.cm. Find the measure of the arc and the length of the arc corresponding to that sector.
ii. If A(3, 5) and B(7, 9), point Q divides seg AB in the ratio 2 : 3, find the co-ordinates of point Q.
iii. Prove that :
“In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of remaining two sides.”
iv. ∆PQR ~ ∆LTR. In ∆PQR, PQ = 4.2 cm, QR = 5.4 cm, PR = 4.8 cm. Construct ∆PQR and ∆LTR such that \(\frac{PQ}{LT}=\frac{3}{4}\).
Answer:
(A) i. In ∆XDE, PQ ǁ DE …(given)
seg PR ǁ seg DF ….Converse of basic proportionality theorem
ii.
(B) i. Given: Radius (r) = 6 cm, area of sector = 15π cm²
To find: i. Measure of the arc (θ),
ii. Length of the arc (/).
∴ The measure of the arc and the length of the arc are 150° and 5π cm respectively.
ii. Let the co-ordinates of point Q be (x, y) and A (x1, y1), B (x2, y2) be the given points.
Here, x1 = 3, y1 = 5, x2 = 7, y2 = 9, m = 2, n = 3
∴ By section formula,
iii. Given: In ∆ABC, ∠ABC = 90°.
To prove: AC² = AB² + BC²
Construction: Draw seg BD ⊥ hypotenuse AC, A-D-C.
Proof:
In ∆ABC, ∠ABC = 90° …[Given]
seg BD ⊥ hypotenuse AC …[Construction]
∴ ∆ABC ~ ∆ADB …[Similarity of right angled triangles]
iv.
Question 4.
Solve the following sub-questions (any two): [8]
i. A bucket is in the form of a frustum of a cone. It holds 28.490 litres of water. The radii of the top and the bottom are 28 cm and 21 cm respectively. Find the height of the bucket. (π = \(\frac{22}{7}\))
ii. Draw a circle with centre P and radius 3 cm. Draw a chord MN of length 4 cm. Draw tangents to the circle through points M and N which intersect in point Q. Measure the length of seg PQ.
iii. In ∆PQR, bisectors of ∠Q and ∠R intersect in point X. Line PX intersects side QR in point Y, then prove that: \(\frac{PQ+PR}{QR}=\frac{PX}{XY}\)
Answer:
i. Radius of the top of the frustum (r1) = 28 cm
Radius of the bottom of the frustum (r2) = 21 cm
Capacity of bucket = Volume of frustum
ii.
∴ l(PQ) = 4 cm.
iii. In ∆PQY, ray QX bisects ∠Q. …[Given]
Question 5.
Solve the following sub-questions (Any one): [3]
i. From top of the building, Ramesh is looking at a bicycle parked at some distance away from the building on the road.
If
AB → Height of building is 40 m
C → Position of bicycle
A → Position of Ramesh on top of the building
∠MAC is the angle of depression and m∠MAC = 30°, then:
(a) Draw a figure with the given information.
(b) Find the distance between building and the bicycle. (√3 = 1.73).
ii. □ABCD is a cyclic quadrilateral where side AB ≅ side BC, ∠ADC = 110°, AC is the diagonal, then:
(a) Draw the figure using given information
(b) Find measure of ∠ABC
(c) Find measure of ∠BAC
(d) Find measure of (arc ABC).
Answer:
i. Given: AB represents the height of building and point C represents the position of bicycle.
∴ The distance between building and the bicycle is 69.20 m.
ii. a.
b. □ABCD is a cyclic quadrilateral. …[Given]
∴ ∠ADC + ∠ABC = 180° …[Opposite angles of a cyclic quadrilateral are supplementary]
∴ 110° + ∠ABC = 180°
∴ ∠ABC = 180° – 110°
∴ m∠ABC = 70°
c. In ∆ABC,
side AB ≅ side BC …[Given]
∴ ∠ACB ≅ ∠BAC …[Isosceles triangle theorem]
Let ∠ACB = ∠BAC = x
Now, ∠ABC + ∠BAC + ∠ACB = 180° …[Sum of the measures of angles of a triangle is 180°]
∴ ∠ABC + x + x = 180°
∴ 70° + 2x = 180°
∴ 2x = 180° – 70°
∴ 2x = 110°
∴ x = \(\frac{110°}{2}\) = 55°
∴ m ∠BAC = 55° …(i)
d. ∠ADC = \(\frac{1}{2}\)m(arc ABC) …[Inscribed angle theorem]
∴ 110° = \(\frac{1}{2}\)m(arc ABC)
∴ m(arc ABC) = 220°