Question

The surface area of a sphere is 616cm². Find the radius.(TT=22/7)
a)7cm.
b)5cm
c)6cm
d)8cm​

Answer 1

Answer:

solu: Area of a sphere = 4Πr².

= 616cm² = 4×22/7×r².

= r² = 616×7/4×22.

= r² = 154×7/22.

= r² = 7×7.

= r² = 49.

= r² = √49.

= r = 7cm. Ans…

give me a brain least.