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- Question
The circumference of a circle is 88 cm, find its area?
Options- A. 616 sq cm
- B. 308 sq cm
- C. 154 sq cm
- D. 77 sq cm
- Correct Answer
- 616 sq cm
- 1. What is the measure of an interior angle of a regular decagon?
Options- A. 120°
- B. 140°
- C. 144°
- D. 150° Discuss
- 2. The base of a parallelogram is twice its height. If the area of the parallelogram is 338 sq.cm. Find its height?
Options- A. 13 cm
- B. 14 cm
- C. 16 cm
- D. 12 cm Discuss
- 3. If the ratio of area of rectangle to its perimeter is 60:11. And length and breadth are in the ratio 6 : 5. Find length of rectangle.
Options- A. 40 units
- B. 30 units
- C. 13 units
- D. 24 units Discuss
- 4. In a wheelchair slalom event, athletes weave around cones and race to the finish line. A diagram of the rectangular course is shown. Find the perimeter of the course
Options- A. 32
- B. 42
- C. 62
- D. 92 Discuss
- 5. Find the perimeter of the rectangle or square with the given dimensions s = 3 cm
Options- A. 12
- B. 13
- C. 14
- D. 15 Discuss
- 6. The perimeter of a right-angled triangle is k times the shortest side. If the ratio of the other side to hypotenuse is 4 : 6, then what is the value of k?
Options- A. 2
- B. 3
- C. 4
- D. 5 Discuss
- 7. If the radius of a circumscribed circle in an equilateral triangle is 14 cm. Then what will be the radius (in cm) of the inscribed circle?
Options- A. 7
- B. 14
- C. 28
- D. 35 Discuss
- 8. What is the measure (in degree) of an exterior angle of a regular polygon of 9 sides?
Options- A. 36
- B. 40
- C. 30
- D. 24 Discuss
- 9. ? DEF is right angled at E. If m?D = 30°, what is the length of DE (in cm), if EF = 6?3 cm?
Options- A. 18
- B. 12?3
- C. 18?3
- D. 12 Discuss
- 10. The length and breadth of a rectangle are 24 cm and 7 cm respectively. Calculate its perimeter (in cm).
Options- A. 124
- B. 48
- C. 62
- D. 96 Discuss
Area problems
Search Results
Correct Answer: 144°
Correct Answer: 13 cm
Explanation:
Let height =x Then, base =2x
2x * x = 338
=>x=13
Correct Answer: 24 units
Explanation:
Ratio of length and breadth is 6 : 5
? Length = 6x
Breadth = 5x
? Area = l x b = 30x2
? Perimeter = 2 (l + b) = 2(6x + 5x) =22x
? (30*x*x)/(22x)= 60/11
? X = 4
? Length = 6x = 6 x 4 = 24 units
Correct Answer: 92
Explanation:
P = 2l + 2w
Correct Answer: 12
Explanation:
P=4s
Correct Answer: 4
Correct Answer: 7
Correct Answer: 40
Correct Answer: 18
Correct Answer: 62
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