Question

find the radius and circumference of a circle whose area is 55.​

Answer 1

Answer:

Step-by-step explanation:

area of Circle =55.44

πr² = 55.44

2×22/7×r² = 55.44

r² = 55.44×7/44

r² = 388.08/44 = 8.82

r = ✓8.82=2.9m

Answer 2

Answer:

area of circle = πr2

22÷7×r2=55

r2=55×7÷22

r2=17.5

r=√17.5

r=4.18

circumference of circle =2πr

2×22÷7×4.18

44×4.18÷7

184.06÷7

26.29