Discussion
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- Question
The curved surface area and the slant height of a right circular cone are 99 sq.cm and 9 cm respectively. Find its diameter (in cm)
Options- A. 3.5
- B. 7
- C. 14
- D. 10.5
- Correct Answer
- 7
- 1. If a regular polygon has 6 sides then the measure of its interior angle is greater than the measure of its exterior angle by how many degrees?
Options- A. 90°
- B. 100°
- C. 60°
- D. 108° Discuss
- 2. The length of the diagonal and the breadth of a rectangle are 25 cm and 7 cm respectively. Find its perimeter (in cm).
Options- A. 124
- B. 41
- C. 82
- D. 62 Discuss
- 3. The height of the equilateral triangle is 9 cm. What is the radius (in cm) of the circle circumscribing the three vertices?
Options- A. 3
- B. 6
- C. 9
- D. 12 Discuss
- 4. A right circular cylinder has height 28 cm and radius of base 14 cm. Two hemispheres of radius 7 cm each are cut from each of the two bases of the cylinder. What is the total surface area (in cm2) of the remaining part?
Options- A. 3842
- B. 4312
- C. 3296
- D. 4436 Discuss
- 5. A cube is placed inside a cone of radius 20 cm and height 10 cm, one of its face being on the base of the cone and vertices of opposite face touching the cone. What is the length (in cm) of side of the cube?
Options- A. 5
- B. 6
- C. 8
- D. 9 Discuss
- 6. Points P and Q lie on side AB and AC of triangle ABC respectively such that segment PQ is parallel to side BC. If the ratio of AP:PB is 2:5, and area of ? APQ is 4 sq cm, what is the area of trapezium PQCB?
Options- A. 49 sq cm
- B. 45 sq cm
- C. 25 sq cm
- D. 21 sq cm Discuss
- 7. The length of a string is 8 feet and 9 inches, which is divided into 3 equal parts. What is the length of each part in inches?
Options- A. 31
- B. 33
- C. 35
- D. 37 Discuss
- 8. The side of an equilateral triangle is 14 cm. Find its area (in sq.cm).
Options- A. 64?3
- B. 49?2
- C. 64?2
- D. 49?3 Discuss
- 9. If the perimeter of a semi-circle is 36 cm, then find its radius (in cm).
Options- A. 7
- B. 14
- C. 13
- D. 26 Discuss
- 10. The length of the diagonal of a rectangle is 26 cm and that of one side is 10 cm. What is the area of this rectangle?
Options- A. 260 sq cm
- B. 120 sq cm
- C. 130 sq cm
- D. 240 sq cm Discuss
Area problems
Search Results
Correct Answer: 60°
Correct Answer: 62
Correct Answer: 6
Correct Answer: 4312
Correct Answer: 8
Correct Answer: 45 sq cm
Correct Answer: 35
Correct Answer: 49?3
Correct Answer: 7
Correct Answer: 240 sq cm
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