Volume and Surface Area Questions Practice Question and Answer
8 Q: The base of a right prism is a tringle with sides 20 cm, 21 cm and 29 cm. If its volume is 7560 cm3, then its lateral surface area ( in cm2) is:
800 05f40de68b8958f14fa2b49f9
5f40de68b8958f14fa2b49f9- 12556false
- 22448false
- 32520true
- 42484false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "2520"
Q: Two cones have their heights in the ratio 1:3 and the radii of their bases in the ratio 3:1. Find the ratio of their volumes?
799 05ecf3a9b79d67a247e487706
5ecf3a9b79d67a247e487706- 13:1true
- 22:1false
- 34:1false
- 45:1false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "3:1"
Q: A right triangle with sides 5 cm, 12 cm and 13 cm is rotated about the side 12 cm to from a cone. The volume of the cone so formed is :
799 060c08c42e3298a2dec40d26d
60c08c42e3298a2dec40d26d- 1$$ {81 π \ cm^{3}}$$false
- 2$$ {100 π \ cm^{3}}$$true
- 3$$ {91 π \ cm^{3}}$$false
- 4$$ {110 π \ cm^{3}}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "$$ {100 π \ cm^{3}}$$"
Q: The length, width and height of a cuboid are 18 cm, 24 cm, and 4 cm, respectively. The volume of the cube is equal to the volume of the given cuboid. The arm of the cube is:
798 05f1e6b911b4d8003eeb0374e
5f1e6b911b4d8003eeb0374e- 116 cmfalse
- 212 cmtrue
- 39 cmfalse
- 48 cmfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "12 cm"
Q: What is the total CSA of cone whose radius is 3 cm and height is 4 cm?
798 05e9d2b8b772f97276f50ca91
5e9d2b8b772f97276f50ca91- 1$$ { 24 π cm^2}$$true
- 2$$ { 25 π cm^2}$$false
- 3$$ { 28 π cm^2}$$false
- 4$$ { 20 π cm^2}$$false
- 5None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "$$ { 24 π cm^2}$$"
Q: The perimeter of a rectangle and equilateral triangle is equal. One side of the rectangle is also equal to the side of the triangle. Find the ratio of the areas of the rectangle and triangle?
798 05f4df4075e74bc4ee553f5cd
5f4df4075e74bc4ee553f5cd- 1$$ {\sqrt{3}:1}$$false
- 2$$ {1 : \sqrt{3}}$$false
- 3$$ {2 : \sqrt{3}}$$true
- 4$$ {4 : \sqrt{3}}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "$$ {2 : \sqrt{3}}$$"
Q: A hollow copper pipe is 22 cm long and its external diameter is 28 cm. If the thickness of the pipe is 3 cm and iron weighs 8.5 g/cm3 , then the weight of the pipe is closest to:
796 060bf5d44c40f0c12f4b8e7c1
60bf5d44c40f0c12f4b8e7c1- 134 kgfalse
- 244 kgtrue
- 314 kgfalse
- 424 kgfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "44 kg"
Q: A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area?
793 05f2e3cbf8c86ab1da00043b1
5f2e3cbf8c86ab1da00043b1- 1289false
- 2616false
- 3962.56false
- 4481.056true
- Show AnswerHide Answer
- Workspace
- SingleChoice