Discussion
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- Question
Volume of a cylinder is 770 cubic cm. If circumference of its base is 22 cm, what will be the curved surface area of the cylinder? (Take ? = 22/7)
Options- A. 440 sq cms
- B. 880 sq cms
- C. 220 sq cms
- D. 660 sq cms
- Correct Answer
- 440 sq cms
- 1. ?ABC is similar to ?DEF. Length of AB is 18 cm and length of the corresponding side DE is 10 cm. What is the ratio of Perimeter of ?ABC : Perimeter of ?DEF?
Options- A. 5:9
- B. 9:5
- C. 81:25
- D. 25:81 Discuss
- 2. The total surface area of a hemisphere is 166.32 sq cm, find its radius?
Options- A. 4.2 cm
- B. 8.4 cm
- C. 1.4 cm
- D. 2.1 cm Discuss
- 3. A cone of radius 7 cm and height 12 cm is completely filled with water. This water is emptied into an empty cylindrical vessel of radius 3.5 cm. What will be the height of water in this vessel?
Options- A. 16 cm
- B. 32 cm
- C. 5.33 cm
- D. 8 cm Discuss
- 4. A circle is inscribed in a square. If the length of the diagonal of the square is 14?2 cm, what is the area (in sq cm) of the circle?
Options- A. 308
- B. 462
- C. 154
- D. 616 Discuss
- 5. If in ?ABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is
Options- A. 6
- B. 8
- C. 10
- D. 10.5 Discuss
- 6. What will be the sum of the measures all the interior angles of a polygon having 14 sides?
Options- A. 2520°
- B. 2160°
- C. 2880°
- D. 3240° Discuss
- 7. In a triangle the length of the side opposite the angle which measures 45° is 8 cm, what is the length of the side opposite to the angle which measures 90°?
Options- A. 8?2 cm
- B. 4?2 cm
- C. 8?3 cm
- D. 4?3 cm Discuss
- 8. If curved surface area of a cylinder is 1386 sq cm and height is 21 cm, what will be its radius? (Take ? = 22/7)
Options- A. 21 cms
- B. 5.25 cms
- C. 10.5 cms
- D. 15.75 cms Discuss
- 9. At least one diagonal bisects the other in a _____.
Options- A. Trapezium
- B. Isosceles trapezium
- C. Kite
- D. Cyclic quadrilateral Discuss
- 10. ?ABC is right angled at B. BD is its altitude. AD = 4 cm and DC = 12 cm. What is the value of AB (in cm)?
Options- A. 9
- B. 10
- C. 6
- D. 8 Discuss
Volume and Surface Area problems
Search Results
Correct Answer: 9:5
Correct Answer: 4.2 cm
Correct Answer: 16 cm
Correct Answer: 154
Correct Answer: 10
Correct Answer: 2160°
Correct Answer: 8?2 cm
Correct Answer: 10.5 cms
Correct Answer: Kite
Correct Answer: 8
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