A wire frame is in rectangular shape which is 57 cm long and 31 cm broad. If the wire is reshaped in the circular shape, find the radius of the circle. (assume π = 22/7)
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Answer:
l=57cm
b=31cm
perimeter of rectangle=2(l+b)
2(57+31)
2×88
176cm
circumference of circle=perimeter of rectangle
2πr=176cm
2×22÷7×r=176
44r÷7=176
r=176×7÷44
r=28cm
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