Question

Find the diameter of a circle whose circumference is equal to the sum of
circumferences of circles with radi 10 cm, 12 om and 18 cm.
20 The cinsterend e shmes than
the​

Answer 1

Answer:

80 cm

Step-by-step explanation:

Let R be the radius of the required circle.

2πR = 2π*10 + 2π*12 + 2π*18

2πR = 2π(10 + 12 + 18)

2πR = 2π*40

Cancelling out 2π on both sides.

R = 40 cm.

The radius of required circle = 40 cm.

The diameter of required circle = 2 * 40 = 80 cm.