Question

the radii of two circles are 14 cm and 10 centimetre respectively find the radius of circle which has circumference equal to the sum of circumference of the two circles​

Answer 1

Radii of first circle= 14 cm

Circumference of the first circle

= 2πr

= 2×22/7×14 cm

= 88 cm

Radii of second circle= 10 cm

Circumference of the second circle

= 2πr

= 2×22/7×10 cm

= 62.8571429 cm

Let the radius of the circle which has circumference equal to the sum of circumference of two circles be r

ATP

2πr = 150.857143

= r = 150.857143×7/22×1/2

= r = 24 cm