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- Question
AB is a chord of the circle and its center is ?O?. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2?11) cm, find the radius (in cm) of the circle.
Options- A. 10
- B. 12
- C. 13
- D. 15
- Correct Answer
- 12
- 1. What is the area (in square units) of the figure enclosed by the graphs of the lines x = -4, x =2, y = -2 and y = 3?
Options- A. 12
- B. 24
- C. 15
- D. 60 Discuss
- 2. Point A divides segment BC in the ratio 5:1. Co-ordinates of B are (6 ,-4) and C are (0,8). What are the co-ordinates of point A?
Options- A. (-1 , 6)
- B. (1 , -6)
- C. (-1 , -6)
- D. (1 , 6) Discuss
- 3. The diagonal of a square is 10 cm. What is the length (in cm) of its side?
Options- A. 5
- B. 5?2
- C. 10?2
- D. 5/?2 Discuss
- 4. PQ is a diameter of a circle with centre O. RS is a chord parallel to PQ subtends an angle of 40° at the centre of the circle. If PR and QS are produced to meet at T, then what will be the measure (in degrees) of ?PTQ?
Options- A. 55
- B. 60
- C. 70
- D. 90 Discuss
- 5. ABC is a right angled triangle in which ?A = 90°, AB = 5 cm and AC = 12 cm. What is the approximate volume (in cm3) of the double cone formed by rotating the triangle about its hypotenuse?
Options- A. 145
- B. 290
- C. 435
- D. 580 Discuss
- 6. The largest chord of the circle has a length of 20.4 cm. The radius of the circle will be_____.
Options- A. 10.2 cm
- B. greater than 10.2 cm
- C. greater than and equal to 10.2 cm
- D. less than 10.2 cm Discuss
- 7. The length of the diagonal and the breadth of a rectangle are 17 cm and 8 cm respectively. Find its perimeter (in cm).
Options- A. 92
- B. 46
- C. 42
- D. 84 Discuss
- 8. If any two sides of a triangle are divided by the line in the same ratio, then the line must be _________________ to the third side of the triangle.
Options- A. equal
- B. parallel
- C. perpendicular
- D. non parallel Discuss
- 9. The perimeter and the breadth of a rectangle are 44 cm and 10 cm respectively. Find its area (in cm2).
Options- A. 60
- B. 240
- C. 120
- D. 180 Discuss
- 10. ?ABC is similar to ?PQR. Length of AB is 18 cm and length of the corresponding side PQ is 12 cm. If area of ?ABC is 324 sq cm, what is the area of ?PQR?
Options- A. 72 sq cm
- B. 144 sq cm
- C. 36 sq cm
- D. 487.5 sq cm Discuss
Volume and Surface Area problems
Search Results
Correct Answer: 15
Correct Answer: (1 , 6)
Correct Answer: 5?2
Correct Answer: 70
Correct Answer: 290
Correct Answer: 10.2 cm
Correct Answer: 46
Correct Answer: parallel
Correct Answer: 120
Correct Answer: 144 sq cm
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