Volume and Surface Area Questions Practice Question and Answer
8 Q: A solid metallic cylinder of base radius 5 cm and height 7 cm is melted to form cones, each of height 1 cm and base radius 1 mm. Find the number of cones?
1245 05ee9a1f7b1ffa91fd4a38bec
5ee9a1f7b1ffa91fd4a38bec- 153500false
- 249500false
- 351500false
- 452500true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "52500"
Q: In the figure given below, AD bisects ∠BAC. If the area of ΔABD=40 cm2 and AC=3AB, then the area of ΔABC:
1241 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: If the perimeter of a triangle is 30 cm and the area is 30 square cm, if the length of the larger side is 13 cm, then what is the length of the shorter side?
1237 05f801aa64e4f797ddbd81c04
5f801aa64e4f797ddbd81c04- 14 cmfalse
- 26 cmfalse
- 35 cmtrue
- 410 cmfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "5 cm"
Q: A polygon has 14 sides then find out No. of diagonals in that polygon.
1237 05e8afd2bbd0d850c66cb13a2
5e8afd2bbd0d850c66cb13a2- 175false
- 276false
- 377true
- 480false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "77 "
Q: A semicircle is folded to make a cone. Find the height (in cm) of the cone if diameter of the semicircle is 28 cm?
1235 0601a4f64552e5f41f7b07047
601a4f64552e5f41f7b07047- 1$$ {7\sqrt{3}}$$true
- 2$$ {14\sqrt{3}}$$false
- 3$$ {7\sqrt{5}}$$false
- 4$$ {7\sqrt{13}}$$false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "$$ {7\sqrt{3}}$$"
Q: The area of a circle is 616 sq cm, find its circumference?
1233 05f0e7954dcdb5f61f5c2fab3
5f0e7954dcdb5f61f5c2fab3- 144 cmfalse
- 288 cmtrue
- 322 cmfalse
- 4176 cmfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "88 cm"
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?
1231 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: The area of the base of a right circular cone is 400π and its height is 15 cm. The curved surface of the cone ( in cm2) is:
1230 05f40ddd354900c5349e9ce36
5f40ddd354900c5349e9ce36- 1560 πfalse
- 2500 πtrue
- 3450 πfalse
- 4480 πfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice