Maths MCQs for AD (ASF) – Series 11 (Q141-150)
Q141. Find the area of a rectangle whose length is 15 cm and breadth is 8 cm.
- A) 115 cm²
- B) 120 cm²
- C) 125 cm²
- D) None of these
Answer: B
Area = length × breadth = 15×8 = 120 cm².
Q142. The perimeter of a square is 64 cm. Find its area.
- A) 256 cm²
- B) 250 cm²
- C) 260 cm²
- D) None of these
Answer: A
Side = 64/4 = 16 cm; area = 16² = 256 cm².
Q143. Find the area of a triangle whose base is 18 cm and height is 10 cm.
- A) 80 cm²
- B) 100 cm²
- C) 90 cm²
- D) None of these
Answer: C
Area = ½×base×height = ½×18×10 = 90 cm².
Q144. The circumference of a circle is 44 cm. Find its radius. (Use π = 22/7)
- A) 8 cm
- B) 7 cm
- C) 6 cm
- D) None of these
Answer: B
2πr = 44 → r = 44×7/44 = 7 cm.
Q145. Find the volume of a cube whose edge is 6 cm.
- A) 220 cm³
- B) 216 cm³
- C) 200 cm³
- D) None of these
Answer: B
Volume = edge³ = 6³ = 216 cm³.
Q146. Find the total surface area of a cube whose edge is 5 cm.
- A) 140 cm²
- B) 160 cm²
- C) 150 cm²
- D) None of these
Answer: C
TSA = 6×edge² = 6×25 = 150 cm².
Q147. The length, breadth and height of a cuboid are 10 cm, 8 cm and 6 cm respectively. Find its volume.
- A) 460 cm³
- B) 480 cm³
- C) 500 cm³
- D) None of these
Answer: B
Volume = l×b×h = 10×8×6 = 480 cm³.
Q148. Find the area of a circle whose radius is 14 cm. (Use π = 22/7)
- A) 620 cm²
- B) 616 cm²
- C) 600 cm²
- D) None of these
Answer: B
Area = πr² = (22/7)×196 = 616 cm².
Q149. The diagonal of a square is 10√2 cm. Find its area.
- A) 90 cm²
- B) 110 cm²
- C) 100 cm²
- D) None of these
Answer: C
Area = diagonal²/2 = (10√2)²/2 = 200/2 = 100 cm².
Q150. Find the curved surface area of a cylinder with radius 7 cm and height 10 cm. (Use π = 22/7)
- A) 440 cm²
- B) 460 cm²
- C) 420 cm²
- D) None of these
Answer: A
CSA = 2πrh = 2×(22/7)×7×10 = 440 cm².
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