Question

find the radius of the cirle whose circumference is 57.2cm

Answer 1

Answer:9.1 is the radius of the circle

Step-by-step explanation:

We know circumference of circle = 2¶r=57.2 2×22/7×r=57.2 r=57.2×7/2×22 1001/11×10 9.1cm

Answer 2

circumference of a circle =2πr

57.2 cm = 2×22/7×r

57.2×7 = 44×r

400.4/44 = r

9.1 cm = r

hope it can help you