Question

Find the radius of a circle whose area is equal to the difference of the areas of two circles of radii 6 cm and 10 cm respectively​

Answer 1

Answer:

0.36 cm

Step-by-step explanation:

Difference of the radii = Area of the circle

Difference of the radii = (10-6) cm

=4cm

Therefore , the area = 4 cm

ATQ

AREA = πr^2

4 = 22/7 X r^2

4 X 7/22 = r^2

2X 7/11 = r^2

14 / 11 = r^2

( 14/11 )^2 =r

0.36cm = r

or

r = 0.36 cm