Question

please solve

given below are the circumference of different circle. find the radius of each radius of each radius ​

Answer 1

Explanation:

using the formula, circumference of a circle = 2πr

a) 4.4= 2×22/7×r

4.4×7= 44r

30.8/44= r

r = 0.7cm

b) 176= 2×22/7×r

176×7= 44r

1232/44= r

r = 28cm

c) 1.5⁴ cm

5.0625 = 2×22/7×r

35.4375= 44r

r = 35.4375÷44

r= 0.81....

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Answer 2

Answer:

2r = d

2πr = circumference

A. 2πr = 4.4

2*22/7*r = 4.4

6.28*r = 4.4

r = 4.7/6.28

= 0.70

b. 2πr = 176

2*22/7*r= 176

6.28*r= 176

r = 176/6.28

= 28.025

c. 2πr = 1.54

6.28*r = 1.54

r = 1.54/6.28

0.245