Question

the diameter of a glass sphere is 3.5 CM then what is the value of its surface area?

​

Answer 1

sorry for upside down

plz mark me brainlist

Answer 2

Diameter = 3.5 cm = 35/10 = 7 / 2

Radius = 7/2 /2 = 7 / 4

Surface Area = 4πr²

= 4 × 22/7 × 7/4 × 7/4

= 22 × 7 / 4

= 154 / 4

= 38.5

Hope you like it please mark as brainliest and please follow me.