Question

Find the Find the surface area of a sphere of radius :
(i) 10.5 cm
(ii) 5.6 cm
(iii) 14 cm

Answer 1

Step-by-step explanation:

formula for the surface area of a sphere is 4πr^2

substitute the value of radius and workout. you will get the answer

hope this formula helps you.....

Answer 2

Answer:

surface area of sphere is 4πr^2

here :

(i) r= 10.5 cm

S.A = 4π *(10.5)^2 = 441π cm^2

(ii) r= 5.6 cm

SA= 4π (5.6)^2 =125.44 π cm^2

(iii) r=14 cm

SA= 4π (14)^2= 784π cm^2