Question

SECTION A
1) Find the surface area of a sphere of diameter 14 cm.​

Answer 1

Answer:

Area≈ 615.75 cm²

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Answer 2

Answer:

=616cm

Step-by-step explanation:

Given, diameter d=14 cm

∴ radius =

2

d

=

2

14

=7 cm

Surface area of a sphere of radius 'r' =4πr

2

=4×

7

22

Given, diameter d=14 cm

∴ radius =

2

d

=

2

14

=7 cm

Surface area of a sphere of radius 'r' =4πr

2

=4×

7

22

×7×7