Discussion
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- Question
The chord AB of a circle of centre O subtends an angle ? with the tangent at A to the circle. Then measure of?ABO is
Options- A. ?
- B. 90° - ?
- C. 90° + ?
- D. 2 (180° - ?)
- Correct Answer
- 90° - ?
- 1. ? ABC is right angled at B. If m?A = 30° , what is the length of AB (in cm), if AC = 10 cm?
Options- A. 5
- B. 5?3
- C. 10?3
- D. 10 Discuss
- 2. G is the centroid of the equilateral triangle ABC, if AB = 9cm then AG is equal to
Options- A. 3?3cm
- B. 3cm
- C. 3?3/2cm
- D. 6cm Discuss
- 3. O is an centre of a circle. P is an external point of it at distance of 13cm from O. The radius of the circle is 5cm. Then the length of a tangent to the circle from P upto the point of contact is
Options- A. ?194cm
- B. 10cm
- C. 12cm
- D. 8cm Discuss
- 4. The lengths of diagonals of a rhombus are 24cm and 10cm the perimeter of the rhombus (in cm ) is :
Options- A. 52
- B. 56
- C. 68
- D. 72 Discuss
- 5. In ?ABC, the medians AD and BE meet at G. The ratio of the areas of ?BDG and the quadrilateral GDCE is
Options- A. 1 : 2
- B. 1 : 3
- C. 2 : 3
- D. 3 : 4 Discuss
- 6. 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
- 7. The point where the 3 medians of a triangle meet is called
Options- A. centroid
- B. Incentre
- C. Circumcentre
- D. orthocentre Discuss
- 8. ?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
- 9. The point equidistant from the sides of a triangle is called
Options- A. Circumcenter
- B. Incentre
- C. Orthocentre
- D. Centroid Discuss
- 10. The point equidistant from the sides of a triangle is called
Options- A. Circumcenter
- B. Incentre
- C. Orthocentre
- D. Centroid Discuss
Volume and Surface Area problems
Search Results
Correct Answer: 5?3
Correct Answer: 3?3cm
Correct Answer: 12cm
Correct Answer: 52
Correct Answer: 1 : 2
Correct Answer: 420
Correct Answer: centroid
Correct Answer: 2.5 cms
Correct Answer: Incentre
Correct Answer: Incentre
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