Discussion
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- Question
The heights of a cone and a cylinder are equal. The radii of their bases are in the ratio 2:1. The ratio of their volumes is:
Options- A. 4:3
- B. 3:4
- C. 2:1
- D. 1:2
- Correct Answer
- 4:3
- 1. The point equidistant from the sides of a triangle is called
Options- A. Circumcenter
- B. Incentre
- C. Orthocentre
- D. Centroid Discuss
- 2. The point equidistant from the sides of a triangle is called
Options- A. Circumcenter
- B. Incentre
- C. Orthocentre
- D. Centroid Discuss
- 3. ?ABC a right angled triangle has ?B = 90° and AC is hypotenuse. D is its circumcentre and AB = 3 cms, BC = 4 cms. The value of BD is
Options- A. 3 cms
- B. 4 cms
- C. 2.5 cms
- D. 5.5 cms Discuss
- 4. The point where the 3 medians of a triangle meet is called
Options- A. centroid
- B. Incentre
- C. Circumcentre
- D. orthocentre Discuss
- 5. Two adjacent sides of a parallelogram are 21 cms and 20 cms. The diagonal joining the end points of these two sides is 29 cms. The area of the parallelogram (in sq.cms) is
Options- A. 240
- B. 120
- C. 210
- D. 420 Discuss
- 6. Which one of the following combination of measurements can form the sides of a triangle?
Options- A. 9 cm, 6 cm, 2 cm
- B. 11 cm, 3 cm, 12 cm
- C. 3 cm, 5 cm, 8 cm
- D. 5 cm, 7 cm, 13 cm Discuss
- 7. In a right angled triangle if hypotenuse is 20 cm and ratio of other two sides is 4:3, the length of the sides are
Options- A. 4 cm and 3 cm
- B. 8 cm and 6 cm
- C. 12 cm and 9 cm
- D. 16 cm and 12 cm Discuss
- 8. In triangle ABC, BAC = 90 deg and AD is perpendicular to BC. If AD = 6cm and BD = 4cm, then the length of BC is
Options- A. 10 cm
- B. 12 cm
- C. 13 cm
- D. 15 cm Discuss
- 9. D and E are points on side AB and AC of ?ABC. DE is parallel to BC. If AD:DB = 2:5 and area of ?ADE is 8 sq cm, what is the ratio of area of ?ADE: area of quadrilateral BDEC?
Options- A. (4:45)
- B. (45:4)
- C. (8:45)
- D. (45:8) Discuss
- 10. ABC is a right angled triangle with angle A = 90 deg. Then the value of cos2A+cos2B+cos2C is
Options- A. 2
- B. 1
- C. 0
- D. 3 Discuss
Volume and Surface Area problems
Search Results
Correct Answer: Incentre
Correct Answer: Incentre
Correct Answer: 2.5 cms
Correct Answer: centroid
Correct Answer: 420
Correct Answer: 11 cm, 3 cm, 12 cm
Correct Answer: 16 cm and 12 cm
Correct Answer: 13 cm
Correct Answer: (4:45)
Correct Answer: 1
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