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- Question
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
- Correct Answer
- 4312
- 1. 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
- 2. The area of a regular hexagon is equal to the area of the square. What is the ratio of the perimeter of the regular hexagon to the perimeter of square?
Options- A. 63 : 36
- B. 23 : 62
- C. 63 : 2
- D. 63 : 23 Discuss
- 3. In the given figure, PQ is a diameter of the semicircle PABQ and O is its center. AOB = 64 deg. BP cuts AQ at X. What is the value (in deg) of AXP?
Options- A. 36
- B. 32
- C. 58
- D. 54 Discuss
- 4. A line cuts two concentric circles. The lengths of chords formed by that line on the two circles are 4 cm and 16 cm. What is the difference (in cm2) in squares of radii of two circles?
Options- A. 240
- B. 120
- C. 60
- D. 90 Discuss
- 5. In a triangle PQR, PX, QY and RZ be altitudes intersecting at O. If PO = 6 cm, PX = 8 cm and QO = 4 cm, then what is the value (in cm) of QY?
Options- A. 6.3
- B. 5.8
- C. 6
- D. 7 Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. 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 Discuss
- 10. 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
Area problems
Search Results
Correct Answer: 8
Correct Answer: 63 : 23
Correct Answer: 58
Correct Answer: 60
Correct Answer: 7
Correct Answer: 6
Correct Answer: 62
Correct Answer: 60°
Correct Answer: 7
Correct Answer: 45 sq cm
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