Discussion
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- Question
In a trapezium ABCD, AB || CD, AB < CD, CD = 6 cm and distance between the parallel sides is 4 cm. If the area of ABCD is 16 sq.cm, then AB is
Options- A. 1 cm
- B. 3 cm
- C. 2 cm
- D. 8 cm
- Correct Answer
- 2 cm
- 1. A wheelchair slalom event, athletes weave around cones and race to the finish line. A diagram of the rectangular course 30m length &16m bredth is shown. Find the the area of the course
Options- A. 480
- B. 560
- C. 180
- D. 460 Discuss
- 2. Find the area of the rectangle or square with the given dimensions s=10 feet
Options- A. 500
- B. 100
- C. 200
- D. 300 Discuss
- 3. The area of a square is 49 mm. What is the length of each side?
Options- A. 5mm
- B. 6mm
- C. 7mm
- D. 8mm Discuss
- 4. The area of a rectangle is 80 cm.If its length is 16 cm, what is its width?
Options- A. 5cm
- B. 10cm
- C. 15cm
- D. 20cm Discuss
- 5. A man walked diagonally across a square plot. Approximately what was the percent saved by not walking along the edges?
Options- A. 10%
- B. 20%
- C. 30%
- D. 40% Discuss
- 6. The area of a circle is 346.5 cm2. Find its circumference (in cm).
Options- A. 132
- B. 38
- C. 66
- D. 76 Discuss
- 7. Find the total surface area (in cm2) of a cube of side 7.5 cm.
Options- A. 364.5
- B. 446
- C. 337.5
- D. 684 Discuss
- 8. Area of circle is equal to the area of a rectangle having perimeter of 50 cms. and length more than the breadth by 3 cms. What is the diameter of the circle?
Options- A. 7 cms
- B. 21 cms
- C. 28 cms
- D. 14 cms Discuss
- 9. The length of the diagonal of a square is 14 cm. What is area of this square?
Options- A. 49 sq cm
- B. 196 sq cm
- C. 98 sq cm
- D. 77 sq cm Discuss
- 10. The circumferences of two circles are touching externally. The distance between their centres is 12 cm. The radius of one circle is 7 cm. Find the diameter(in cm) of the other circle.
Options- A. 12
- B. 10
- C. 8
- D. 5 Discuss
Area problems
Search Results
Correct Answer: 480
Explanation:
A = lw
Correct Answer: 100
Explanation:
Correct Answer: 7mm
Explanation:
Correct Answer: 5cm
Explanation:
A=LB
Correct Answer: 30%
Explanation:
let the side of the square be x meters
length of two sides = 2x meters
diagonal =
= 1.414x m
saving on 2x meters = .59x m
saving % = %
= 30% (approx)
Correct Answer: 66
Correct Answer: 337.5
Correct Answer: 14 cms
Explanation:
Let the breadth of rectangle be x cm => Length of rectangle = (x+3) cm Now, perimeter =2(x+x+3) = 50 => 2x + 3 = 25 => x = 11 Thus, breadth = 11 cm and length = 14 cm Area of circle = Area of rectangle =>pi * r* r = 14 * 11 =>r*r = 14 * 11 * 7/22 =>r = 7 cm Diameter = 2 * 7 = 14 cm
Correct Answer: 98 sq cm
Correct Answer: 10
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