A wire is in in the form of a rectangle of of 18. 7 cm long and 14.3cm wide is reshaped and bent into the form of a circle. find the radius of the circle so formed
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Answer:
r = 10.5
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Answer:
10.5cm
Step-by-step explanation:
perimeter of the rectangle = 2 (18.7 + 14.3) = 66cm
perimeter of circle = 2πr = 66cm
∴r= (33)÷2π =(66 × 7) ÷ (2 × 22) = 21/4 = 10.5cm
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