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The curved surfaced area of sphere of radius 14 cm is: (π=227\pi = \frac{22}7π=722​)
Question

The curved surfaced area of sphere of radius 14 cm is: (π=227\pi = \frac{22}7)

A.

2,446 cm²

B.

2,464 cm²

C.

2,428 cm²

D.

2,454 cm²

Correct option is B

Given:

Radius of the sphere, r = 14 cm

Formula Used:

The curved surface area (CSA) of a sphere is also its total surface area:

CSA of sphere = 4×227×r24 \times \frac{22}{7} \times r^2​​

Solution:

CSA of sphere = 4×227×1424 \times \frac{22}{7} \times 14^2​​

=4×227×196= 4 \times \frac{22}{7} \times 196​​

=887×196= \frac{88}{7} \times 196​​

=88×28= 88 \times 28​​

=2464 cm2= 2464 \ cm^2​​

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