Question

6. A circular rope of radius 56 cm is cut and bent in the form of a rectangle whose sides are in
the ratio of 3:8. What is the smaller side of the rectangle?
58cm
42cm
52cm
48cm
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Answer 1

Answer:

perimeter is 352cm

lenght = 128 cm

breadth = 48 cm

Step-by-step explanation:

r=56

$2\pi \: r \: = \: 2 \times 22 \div 7 \times 56 \\ = 352cm$

perimeter is 352 cm

perimter of circle = perimeter of rectangle

2(l+b) = 352cm

(l+b) = 176

11x = 176

x = 16

3x=3×16=48

8x=8×16=128

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