Question

III. (lake =
22
7).
circumferences. (Take t =
.
22
7
).
The diamete
The radii of two circles are 20 cm and 13 cm. Find the difference between their​

Answer 1

Answer:

Step-by-step explanation:

It is given that,

Radius of first circle = 20 cm.

We know that,

Circumference of the circle = 2πr

Substituting the values,

=2∗22/7∗20

So we get,

=880/7

=122.8 cm.

Similarly,

Radius of the second circle = 13 cm.

We know that,

Circumference of the circle = 2πr.

Substituting the values,

=2∗22/7∗13

So we get,

=572/7

=81.7

So the difference of circumference of two circles = 122.8–81.7=41.1 cm.