Question

If Total surface area of a solid hemispheres is 27 cm sq. Find its radius.

Answer 1

TSA of hemisphere = 4πr^2 =27 sq cm
4*3.14*r^2 = 27
12.56* r^2 =27
r^2 =27/12.56
r^2 = 2.14
r= √2.14
r=1.46 cm. (approximately)
hope this helps you mate....

Answer 2

The radius of hemisphere is 1.69 cm

Step-by-step explanation:

Total surface area of hemisphere =$3 \pi r^2$

r = radius of hemisphere

We are given that Total surface area of a solid hemispheres is 27 cm sq

$3 \pi r^2 = 27$

$3 \times \frac{22}{7} \times r^2 =27$

$r^2 = \frac{27 \times 7}{3 \times 22}$

$r=\sqrt{ \frac{27 \times 7}{3 \times 22}}$

r=1.69

Hence The radius of hemisphere is 1.69 cm

#Learn more:

The total surface area of a hemisphere is 166.32 sq cm, find its radius?

https://brainly.in/question/1679918