Discussion
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- Question
The co-ordinates of the centroid of a triangle ABC are (1 , -4). What are the co-ordinates of vertex C if co-ordinates of A and B are (3 , -4) and (0 , 5) respectively?
Options- A. (0 , 13)
- B. (0, 5)
- C. (0, -5)
- D. (0 , -13)
- Correct Answer
- (0 , -13)
- 1. What is the reflection of the point (-1 , 3) in the line x = -4?
Options- A. (-7 ,-3)
- B. (-7 ,3)
- C. (7 ,-3)
- D. (7 ,3) Discuss
- 2. What is the reflection of the point (-2, 5) in the line x = -1?
Options- A. (-2 , -7)
- B. (0 , 5)
- C. (2 , 5)
- D. (-2 , 7) Discuss
- 3. Point A (2, 1) divides segment BC in the ratio 2:3. Co-ordinates of B are (1, -3) and C are (4, y). What is the value of y?
Options- A. 8
- B. -7
- C. -8
- D. 7 Discuss
- 4. What is the reflection of the point (1 , 2) in the line y = 3?
Options- A. (1, -4)
- B. (1, 4)
- C. (-1, -4)
- D. (-1, 4) Discuss
- 5. What is the value of Cot 60°- Cos 45°?
Options- A. (9 - 2?3)/9
- B. (2?6 - 1)/?3
- C. (1 - 2?3)/2
- D. (?2 - ?3)/?6 Discuss
- 6. ? DEF is right angled at E. If m?F = 45°, then what is the value of 2 Sin F x Cot F?
Options- A. ?2
- B. 2
- C. 1/?2
- D. 1/2 Discuss
- 7. The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area (in sq.cm) of the triangle?
Options- A. 50?5
- B. 100
- C. 75?7
- D. 175 Discuss
- 8. PQ is the chord of a circle whose centre is O. ROS is a line segment originating from a point R on the circle that intersect PQ produced at point S such that QS = OR. If ?QSR = 30°, then what is the value (in degrees)of POR?
Options- A. 30
- B. 45
- C. 60
- D. 90 Discuss
- 9. Slope of the line AB is 4/3. Co-ordinates of points A and B are (x , -5) and (2 , -3) respectively. What is the value of x?
Options- A. 1/2
- B. -1/4
- C. 4
- D. -4 Discuss
- 10. If the sum of radius and height of a solid cylinder is 20 cm and its total surface area is 880 cm then its volume is
Options- A. 1760 cm3
- B. 8800 cm3
- C. 2002 cm3
- D. 4804 cm3 Discuss
Volume and Surface Area problems
Search Results
Correct Answer: (-7 ,3)
Correct Answer: (0 , 5)
Correct Answer: 7
Correct Answer: (1, 4)
Correct Answer: (?2 - ?3)/?6
Correct Answer: ?2
Correct Answer: 75?7
Correct Answer: 90
Correct Answer: 1/2
Correct Answer: 2002 cm3
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