Discussion
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- Question
The area of a rectangle is 120 sq cm and its perimeter 140 cm. What is the length of its diagonal?
Options- A. 50 cm
- B. 30 cm
- C. 40 cm
- D. 60 cm
- Correct Answer
- 50 cm
- 1. What is the length of the side of an equilateral triangle, if its area is 36?3 sq cm?
Options- A. 6 cm
- B. 24 cm
- C. 12 cm
- D. 18 cm Discuss
- 2. If the radius of a circle is increased by 25%, its area increases by:
Options- A. 50 percent
- B. 25 percent
- C. 28.125 percent
- D. 56.25 percent Discuss
- 3. If a cylinder of radius 4.3 cm and height 4.8 cm is melted and constructed into a cone of the same radius, what will be the height of this cone? (Use ? = 22/7)
Options- A. 28.8 cm
- B. 14.4 cm
- C. 7.2 cm
- D. 21.6 cm Discuss
- 4. ?PQR is right angled at Q. QS is the altitude. PQ is 2?13 cm and PS is 8 cm. What is the length of SR?
Options- A. 6?13 cm
- B. 4?13 cm
- C. 18 cm
- D. 9 cm Discuss
- 5. If the sum of the measures of all the interior angles of polygon is 2340°. What is the number of sides of the polygon?
Options- A. 13
- B. 15
- C. 17
- D. 11 Discuss
- 6. An angle is (2/3)rd of its supplementary angle. What is the measure of the angle?
Options- A. 108°
- B. 72°
- C. 54°
- D. 36° Discuss
- 7. The area of a trapezium is 21 sq cm, the distance between the parallel sides is 3 cm and one of the parallel sides is 8.3 cm. What is the length of the other parallel side?
Options- A. 12.7 cm
- B. 7.7 cm
- C. 10.7 cm
- D. 5.7 cm Discuss
- 8. Triangle ABC is similar to triangle PQR and AB : PQ = 2 : 3. AD is the median to the side BC in triangle ABC and PS is the median to the side QR in triangle PQR. What is the value of (BD/QS)2 ?
Options- A. 3/5
- B. 4/9
- C. 2/3
- D. 4/7 Discuss
- 9. AB and AC are the two tangents to a circle whose radius is 6 cm. If ?BAC = 60 deg, then what is the value (in cm) of ?(AB2 + AC2) ?
Options- A. 6?6
- B. 4?6
- C. 9?3
- D. 8?3 Discuss
- 10. The radius of two circles is 3 cm and 4 cm. The distance between the centres of the circles is 10 cm. What is the ratio of the length of direct common tangent to the length of the transverse common tangent?
Options- A. ?51 : ?68
- B. ?33 : ?17
- C. ?66 : ?51
- D. ?28 : ?17 Discuss
Area problems
Search Results
Correct Answer: 12 cm
Correct Answer: 56.25 percent
Correct Answer: 14.4 cm
Correct Answer: 18 cm
Correct Answer: 15
Correct Answer: 72°
Correct Answer: 5.7 cm
Correct Answer: 4/9
Correct Answer: 6?6
Correct Answer: ?33 : ?17
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