Question

The diameters of two circles are 4cm and 6cm respectively find the ratio of their areas​

Answer 1

Answer:

area of circle = πr^2

r1 = 4/2 = 2cm

r2 = 6/2 = 3cm

πr^2/πr^2

r1^2/r2^2

4/9

4:9 cm^2