Question

if the surface area of a sphere is 154cmsquare find its diameter

Answer 1

Answer:

Step-by-step explanation:

hello friend here is your required answer

Let r be the radius of the sphere

surface area of the sphere=4πr sq

Also surface area=154cm sq

4π sq=154

4×22/7×r sq=154

r sq=154×7/4×22=12.25

r=+√12.25=3.5

Hence the radius of the sphere=3.5cm

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Answer 2

your answer will
$\boxed{22cm}$

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