Question

8. A solid sphere and solid hemisphere have equal total surface areas. The ratio of
their radii is
(1) √3:2
(2) 3:2
(3) 3:2 (4) 2:3​

Answer 1

Step-by-step explanation:

Given

4πr1^2=3πr2^2

2r1=√3r2

r1:r2=√3:2