Question

The radii of two circles are 18cm and 10cm. Find the diameter of the circle whose circumference is equal to the sum of the circumferences of these two circles.

Answer 1

Answer:

56 cm

Step-by-step explanation:

Circumference of circle is equal to

2πr

Let the circle's radius be r

→ 2πr=2π(10)+2π(18)

→r=10+18

→r=28 cm

Therefore diameter is equal to

2r=28*2

=56 cm

Hope it helps

Please mark me as brainliest

Answer 2

Answer:

Hii dear

Here is your answer

56 cm

Step-by-step explanation:

Circumference of circle is equal to

2πr

Let the circle's radius be r

→ 2πr=2π(10)+2π(18)

→r=10+18

→r=28 cm

Therefore diameter is equal to

2r=28*2

=56 cm

I hope this answer help you

Please mark be brainliest.