Question

the area of a circle is 100 times the area of another circle. find the ratio of their circumstances​

Answer 1

Answer:

10:1

A

1

=100A

2

⇒

A

2

A

1

=100

⇒

πr

2

2

πr

1

2

=100

⇒

r

2

r

1

=10

So,

c

2

c

1

=

2πr

2

2πr

1

=

r

2

r

1

=

1

10

.