Volume and Surface Area problems
- 1. The area of a semicircle is 1925 cm2. Calculate its perimeter (in cm).
Options- A. 360
- B. 80
- C. 160
- D. 180 Also asked in: Bank Exams
Correct Answer: 180
- 2. If the side AB of an equilateral triangle ABC is equal to 12 cm. Calculate the length( in cm) of the AO, if O is the centroid of the triangle.
Options- A. 2?3
- B. 3?3
- C. 4?3
- D. 9?3 Also asked in: Bank Exams
Correct Answer: 4?3
- 3. The perimeter and the length of one of the diagonals of a rhombus is 34 cm and 8 cm respectively. Find the length of its other diagonal (in cm).
Options- A. 7.5
- B. 30
- C. 22.5
- D. 15 Also asked in: Bank Exams
Correct Answer: 15
- 4. Find the perimeter (in cm) of a semicircle of radius 14 cm.
Options- A. 144
- B. 46
- C. 72
- D. 92 Also asked in: Bank Exams
Correct Answer: 72
- 5. The volume of a cube is 166.375 cm3. Find its side (in cm).
Options- A. 6.5
- B. 4.5
- C. 7.5
- D. 5.5 Also asked in: Bank Exams
Correct Answer: 5.5
- 6. The base area of a right pyramid is 57 sq. units and height is 10 units. Then the volume of the pyramid is
Options- A. 190 c. units
- B. 380 c. units
- C. 540 c. units
- D. 570 c. units Also asked in: Bank Exams
Correct Answer: 190 c. units
- 7. In ?PQR, L and M are two points on the sides PQ and PR respectively such that LM II QR. If PL=2cm; LQ=6cm and PM=1.5 cm, then MR in cm is
Options- A. 0.5
- B. 4.5
- C. 9
- D. 8 Also asked in: Bank Exams
Correct Answer: 4.5
- 8. The length of the radius of a circle with centre O is 5 cm and the length of the chord AB is 8 cm. The distance of the chord AB from the point O is
Options- A. 2 cm
- B. 3 cm
- C. 4 cm
- D. 15 cm Also asked in: Bank Exams
Correct Answer: 3 cm
- 9. The radius of a sphere and right circular cylinder is 'r'. Their volumes are equal. The ratio of the height and radius of the cylinder is:
Options- A. 3:1
- B. 2:1
- C. 3:2
- D. 4:3 Also asked in: Bank Exams
Correct Answer: 4:3
- 10. The orthocentre of a triangle is the point where
Options- A. the medians meet
- B. the altitudes meet
- C. the right bisectors of the sides of
- D. the bisectors of the angles Also asked in: Bank Exams
Correct Answer: the altitudes meet
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