Math, asked by venugopalahuja, 8 months ago

The radii of two circles are 19cm and 9cm respectively. Find the radius of the circle which has circumference equal to the sum of the circumference of the two circles....
plz answer it fast
don't post any irravelent answer...

Answers

Answered by Anonymous

Given: Radius of 1

circle=r

=9cm

Radius of 2

circle=r

=19cm

Let the radius of required circle=rcm

According to the question,

Circumference of required circle=Sum of circumference of two circles.

Circumference of small circle=2πr

=2π×9=18π

Circumference of larger circle=2πr

=2π×19=38π

Now,Circumference of required circle=Sum of circumference of two circles.

2πr=18π+38π

2r=56

r=28cm

Hence radius of new circle =28cm

Answered by singhmohit097937

Step-by-step explanation:

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