Question

The radii af two circles are 19 cm and 9 cm respectively.
Find the radius of the circle which has circumference equal.​

Answer 1

Answer:

Let the radius of 3rd circle be r. Therefore, the radius of the circle which has circumference equal to the sum of the circumference of the given two circles is 28 cm.

Step-by-step explanation:

hope it's helpful

Answer 2

Answer:

R1=19

R2=9

NEW CIRCUMFERENCE= 2πR1+2πR2

$2\pi \times r = 2 \times \frac{22}{7} (19 + 9) \\ r = \frac{2 \times 22 \times 28}{7 \times 2} \times \frac{7}{22} \\r = 28$

RADIUS OF NEW CIRCLE= 28CM