Question

The ratio between the areas of two circles is 16 : 9. Find the ratio between their:
i) radi
ii) diameter iii) circumferences​

Answer 1

Answer:

1) Radii=4:3

2) Diameters=8:6

3) Circumferences=4:3

1) Ratio of radii = πR^2/πr^2=16/9

reduce π

Now

R^2/r^2=16/9

(R/r)^2=16/9

Root both sides

R/r=4/3

4:3

2)Diameter= 4*2/3*2

8/6

8:6

3) Circumferences=2πR/2πr

Reduce 2π

R/r=4/3

R/r=4:3

HAVE A GOOD DAY

Answer 2

πr^2/πR^2 =16/9

r^2/R^2=16/9

r/R=4/3