Volume and Surface Area Practice Question and Answer
8 Q: In the figure given below, AD bisects ∠BAC. If the area of ΔABD=40 cm2 and AC=3AB, then the area of ΔABC:
1595 05f59ce72b772fe2f8b222a04
5f59ce72b772fe2f8b222a04- 1$$ {150 \ cm^{2}}$$false
- 2$$ {100 \ cm^{2}}$$false
- 3$$ {120 \ cm^{2}}$$true
- 4$$ {160 \ cm^{2}}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "$$ {120 \ cm^{2}}$$"
Q: One side of the rectangular ground is 8m and its diagonal is 17m. Find the area of the ground?
1592 05ee9a728bc81cb2528ec0497
5ee9a728bc81cb2528ec0497- 1150 m²false
- 2140 m²false
- 3130 m²false
- 4120 m²true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "120 m²"
Q: If the areas of circular ring having inner and outer radius 8 cm and 12 cm respectively is equal to the total surface area of cylinder of radius R1 and height h, then h in terms of R1 will be :
1589 060b6101727bd974fe7f5d7a5
60b6101727bd974fe7f5d7a5- 1$$ {40-R_1\over {R_1}}$$false
- 2$$ {40-R_1\over {R_1^{2}}}$$false
- 3$$ {40-R_1^{2}}\over R_1$$true
- 4None of thesefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "$$ {40-R_1^{2}}\over R_1$$"
Q: If a side of a square is a, then what will be the area of the square on its diagonal?
1588 05fa91dbc4e71ba46b02a721f
5fa91dbc4e71ba46b02a721f- 1$$ {\sqrt{2}a^{2}}$$false
- 2$$ {{2}a^{2}}$$true
- 3$$ {{5}a^{2}}$$false
- 4$$ {a^{2}}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "$$ {{2}a^{2}}$$"
Q: The total surface area of a cube is 864 square cm. What will be its volume?
1586 05fa919244e71ba46b02a592b
5fa919244e71ba46b02a592b- 1216false
- 21728true
- 3729false
- 4512false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "1728"
Q: If the perimeter of a circular plot is equal to the perimeter of a square plot, what will be the ratio of their areas?
1579 05f97f1d5d433054b5c8a7d4a
5f97f1d5d433054b5c8a7d4a- 112:11false
- 214:11true
- 36:11false
- 47:11false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "14:11"
Q: A cylindrical well of depth 21 m with internal radius of 13 m is dug up. The mud, so detained, is spread evenly to form a platform of dimension 52 × 13.2. What is the height of the platform?
1578 06058670a9982dc053f987d21
6058670a9982dc053f987d21- 162.5 mfalse
- 237.5 mtrue
- 313.4 mfalse
- 418.2 mfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "37.5 m"
Q: A rectangular grass plot 80 m × 60 m has two roads, each 10 m wide, running in the middle of it; one parallel to length and the other parallel to breadth. Find the cost of gravelling the roads at ₹ 2 per m2.
1576 0600e8d83178b94051cdf9081
600e8d83178b94051cdf9081- 1₹ 2600true
- 2₹ 2680false
- 3₹ 2580false
- 4₹ 2500false
- Show AnswerHide Answer
- Workspace
- SingleChoice