Question

find the surface area of a sphere of diameter:14 cm ​

Answer 1

Answer:

A≈615.75cm²

d Diameter 14cm

Using the formulas

A=4πr2

d=2r

Solving forA

A=πd2=π·142≈615.75216cm²

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

we know that  

The formula used for surface area of sphere is  $4\pi$r²

so (1)14 cm

you know that diameter is 14 cm, now to find the radius(r) divide the diameter by 2.

so, r=7 cm

now

$A=4\pi7x^{2} \\A=4\pi(49)\\A=196\pi cmx^{2}$

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