Math, asked by kamal927110, 1 year ago

the circumference of two circle are 66 and 132 CM respectively find the difference between their radius​

Answers

Answered by sahilkumar1103
9

2πr = 66

r = 66/2π

r=21/2

2πR = 132

R = 132/2π

= 21

R-r = 21-21/2

= 21/2

=10.5

Pls mark my answer as the brainliest

Answered by wifilethbridge
10

Difference between their radius is 10.5 cm

Step-by-step explanation:

Formula of circumference of circle = 2 \pi r

Circumference of circle 1 = 66 cm

So, 2 \pi r = 66

2 \times \frac{22}{7} \times r = 66

r = \frac{66 \times 7}{2 \times 22}

r=10.5 cm

Circumference of circle 2 = 132 cm

2 \pi r = 132

2 \times \frac{22}{7} \times r = 132

r = \frac{132 \times 7}{2 \times 22}

r= 21 cm

Difference between their radius​  = 21-10.5 = 10.5 cm

#Learn more:

The sum of circumference of two circle is 132 CM if the radius of one circle is 14 cm find the radius of second circle.

https://brainly.in/question/7630121

Similar questions