A wire was bent into a circle of diameter4 cm what would be the diameter of a circle made by bending a wire of half the the length
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Answer:
2 cm
Step-by-step explanation:
Length of the wire
= Circumference of the circle with diameter 4 cm
= 2 × 22/7 × 4/2
= 88/7 cm
Therefore , circumference of new circle
= 1/2 of 88/7
=> 2 × 22/7 × reqd. radius = 1/2 × 88/7
=> reqd. radius = 1/2 × 88/7 × 1/2 × 7/22
= 1 cm
Therefore , reqd. diameter = 2 × radius
= 2 × 1
= 2 cm
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