Discussion
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- Question
If ABCDEF is a regular hexagon, then what is the value (in degrees) of ?ADB?
Options- A. 15
- B. 30
- C. 45
- D. 60
- Correct Answer
- 30
- 1. PQRS is a square whose side is 20 cm. By joining opposite vertices of PQRS are get four triangles. What is the sum of the perimeters of the four triangles?
Options- A. 40?2
- B. 80?2 + 80
- C. 40?2 + 40
- D. 40?2 + 80 Discuss
- 2. PQR is a right angled triangle in which PQ = QR. If the hypotenuse of the triangle is 20 cm, then what is the area (in cm2) of the triangle PQR?
Options- A. 100?2
- B. 100
- C. 50?2
- D. 50 Discuss
- 3. Triangle PQR is inscribed in the circle whose radius is 14 cm. If PQ is the diameter of the circle and PR = 10 cm, then what is the area of the triangle PQR?
Options- A. 196
- B. 30?19
- C. 40?17
- D. 35?21 Discuss
- 4. What is the area (in cm2) of the circumcircle of a triangle whose sides are 6 cm, 8 cm and 10 cm respectively?
Options- A. 275/7
- B. 550/7
- C. 2200/7
- D. 1100/7 Discuss
- 5. If O is the orthocentre of a triangle ABC and ?BOC = 100°, the measure of ?BAC is
Options- A. 100°
- B. 180°
- C. 80°
- D. 200° Discuss
- 6. ABCD is square and CDE is an equilateral triangle outside the square. What is the value (in degrees) of ?BEC?
Options- A. 15
- B. 30
- C. 25
- D. 10 Discuss
- 7. There is a circular garden of radius 21 metres. A path of width 3.5 metres is constructed just outside the garden. What is the area (in metres2) of the path?
Options- A. 50.05
- B. 57.56
- C. 52.12
- D. none Discuss
- 8. A solid hemisphere has radius 14 cm. It is melted to form a cylinder such that the ratio of its curved surface area and total surface area is 2 : 3. What is the radius (in cm) of its base?
Options- A. 1033
- B. 1433
- C. 733
- D. 2133 Discuss
- 9. In a trapezium, one diagonal divides the other in the ratio 2 : 9. If the length of the larger of the two parallel sides is 45 cm, then what is the length (in cm) of the other parallel side?
Options- A. 10
- B. 5
- C. 18
- D. 14 Discuss
- 10. The distance between the centres of two circles is 61 cm and their radii are 35 cm and 24 cm. What is the length (in cm) of the direct common tangent to the circles?
Options- A. 60
- B. 54
- C. 48
- D. 72 Discuss
Area problems
Search Results
Correct Answer: 80?2 + 80
Correct Answer: 100
Correct Answer: 30?19
Correct Answer: 550/7
Correct Answer: 80°
Correct Answer: 15
Correct Answer: none
Correct Answer: 1433
Correct Answer: 10
Correct Answer: 60
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