Question

What.is the. Ratio of the total surface area of the solid hemisphere to the square of its radius.

Answer 1

let radius of the sphere = r
ratio= total surface area of hemi sphere/radius^2

=(3*pi*r^2)/r^2
=3*pi
=3*22/7
=66/7
=66:7

Answer 2

Answer:

Total surface area of solid hemisphere : Square of its radius = 3pi : 1

Step-by-step explanation:

1)We know that total surface area of a solid hemisphere = 3x pi x r x r

where r is the radius of the hemisphere

2) Square of its radius = r x

Therefore, Total surface area of solid hemisphere / Square of its radius

= 3 x pi x r x r / r x

= 3 x pi / 1

So Ratio = 3pi : 1