Question

Circumfernce of two concentric
circles 176m and 132m respectfully
What is
the difference batween thire
radis​

Answer 1

Answer:

Difference = 7m

Step-by-step explanation:

Circumference of one circle= 132

2πr = 132

r = 132/2π

r = 66x7/22

r = 21 m

Similarly,

Circumference of another concentric circle= 176

2πr = 176

r = 176/2π

r = 88x7/22

r = 28 m

Hence,

Difference between their radius= (28-21) m

= 7m