Question

The radius of two circles are 4 cm and 3 cm. find
radius of circle whose area is equal to sumof
area of two circles. Also find circumferences of
this circle​

Answer 1

Step-by-step explanation:

Suppose 1st circle R = 4

and 2nd circle R' = 3

and big circle radius = r

then .as question we have to make a proper equation for this .

$\pi {4}^{2} + \pi {3}^{2} = \pi {r}^{2}$

$16\pi + 9\pi = \pi {r}^{2}$

$= r = 5$

circumferences of

this circle= 2πr = 10π

Hope it helps u ☺❤.

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