CBSE Class 8 Mathematics Mensuration Worksheet Set A

Question. Find the radius of the cylinder whose lateral surface area is 704 cm² and height is 8cm.
(A) 6 cm
(B) 4 cm
(C) 8 cm
(D) 14 cm
Answer : D

Question. What is the height of a cuboid of volume 216 cm 3 if its length and breadth measure 8 em and 6 em?
(A) 4.5 m
(B) 6 m
(C) 4.8 m
(D) 9 m
Answer : A

Question. If the radius of a circle is 7/√π cm, what is the area of the circle?
(A) 154 cm²
(B) (49/π) cm²
(C) 22 cm²
(D) 49 cm²
Answer : D

Question. A cuboid measuring 20 em by 10 em by 4 cm is constructed using 2 cm cubes.
How many cubes were needed?
(A) 200
(B) 300
(C) 100
(D) 150
Answer : C

Question. The sides of a triangle are 11 cm, 15 cm and 16 cm. What is the measure of the altitude to the largest side ?
(A) 30√7 cm
(B) 30 cm
(C) (15√7/4) cm
(D) (1S√7/2) cm
Answer : C

Question. An aquarium is in the form of a cuboid whose external measures are 80 cm x 30 em x 40 cm. The base, side faces and back face are to be covered with a coloured paper. Find the area of the paper needed.
(A) 2000 cm²
(B) 8000 cm²
(C) 3000 cm²
(D) 1000 cm²
Answer : B

Question. The perimeter of a trapezium is 52 cm and its non-parallel sides are each equal to 10 cm. If its altitude is 8 cm, what is its area?
(A) 128 cm²
(B) 112 cm²
(C) 118 cm²
(D) 124 cm²
Answer : A

Question. From a cuboid measuring 7 em by 8 em by 9 em, a cube of side 5 em is cut. What is the volume of the remaining cuboid?
(A) 397 cm³
(B) 389 cm³
(C) 398 cm³
(D) 379 cm³
Answer : D

Question. The adjacent sides of a parallelogram are 8 cm and 9 cm. The diagonal joining the ends of these sides is 13 cm. Calculate the area of the parallelogram.
(A) 72 cm²
(B) 12√35 cm²
(C) 24√35 cm²
(D) 150 cm²
Answer : B

Question. A rectangular piece of paper 11 cm x 4 cm is folded without overlapping to make a cylinder of height 4 em. Find the volume of the cylinder.
(A) 38.5 cm³
(B) 40.5 cm³
(C) 41.5 cm³
(D) 42.5 cm³
Answer : A

Question. The dimensions of a hall are 40 m, 25 m and 20 m . If each person requires 200 cubic metres of space, how many persons can be accommodated in the hall?
(A) 120
(B) 150
(C) 140
(D) 100
Answer : D

Question. Three cylinders each of height 16 em and radius of base 4 em are placed on a plane so that each cylinder touches the other two. What is the volume of the region enclosed between the three cylinders?
(A) 98 (4~ -7π) cm³
(B) 98 (2.√3 -7π) cm³
(C) 98 (√3 - 7π) cm³
(D) 128 (2√3 -7π) cm³
Answer : D

Question. A stone of volume 36 cm³ is placed in a rectangular tank measuring 8 cm by 6 cm by 5 cm. A student wants to fill the tank with water to a height of 4 cm. What is the volume of water needed?
(A) 218 cm³
(B) 156 cm³
(C) 228 cm³
(D) 192 cm³
Answer : B

Question. What is the volume of a cylindrical conta iner with base radius 5 cm and height 20 cm? (Take 1t = 3.1 4 .)
(A) 157 l
(B) 1.57 l
(C) 1570 l
(D) 15.7 l
Answer : B

Question. In a building, there are 24 cylindrical pillars. The radius of each pillar is 28 cm and height is 4 m. Find the total cost of painting the curved surface area of al pillars at the rate of ₹ 8 per m².
(A) ₹ 1352.68
(B) ₹ 1351.68
(C) ₹ 1353.68
(D) ₹ 1340.68
Answer : D

Question. Volumes of two cylinders of same height are in the ratio 1:16. What is the ratio of their radii.
Answer : 1:4

Question. Find the height of cuboid whose volume is 125 cm³ and base area is 5 cm².
Answer : 25 cm

Question. Find the volume of cylinder whose radius is 7 cm and height is 5 cm.
Answer : 770 cm³

Question. Find the ratio of the areas of two circles whose radii is 7 cm and 14 cm.
Answer : 1:4

Question. How many cm³ of juice can be poured in a cuboidical can whose dimensions are 15 cm × 10 cm × 25 cm.
Answer : 3750 cm³

Question. What is the area of curved surface of right circular cylinder with height 14 cm and radius of base 5 cm?
Answer : 440 cm²

Question. Find the diameter of the circle whose circumference is 220 metre.
Answer : 70 m

Question. What is the radius of a circle of area is 154 cm².
Answer : 7 cm

Question. Find the circumference of the circle whose radius is 7 cms.
Answer : 44 cm

Question. A room has two circular windows for exhaust fans. What is the area of these windows if the radius of each 7 cm.
Answer : 308 cm²

Question. What is the area of shaded ring if radius of two circles are 4 cm and 3 cm?
Answer : 22 cm²

Question. A wire in the shape of a square, is 264 cm long is reshaped as a circle. What is the radius of the circle so formed?
Answer : 42 cm

Please refer to the link below for CBSE Class 8 Mathematics Worksheet - Mensuration