Question

गोले का पृष्ठीय क्षेत्रफल क्या होगा जिसकी त्रिज्या 14cm है?
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Answer 1

SOLUTION

TO DETERMINE

The surface area of the sphere whose radius is 14cm

EVALUATION

Here it is given that the radius of the sphere is 14 cm

Hence the required surface area of the sphere

$\sf{ = 4\pi {r}^{2} \: \: {cm}^{2} }$

$\displaystyle \sf{ = 4 \times \frac{22}{7} \times {(14)}^{2} \: \: {cm}^{2} }$

$\displaystyle \sf{ = 4 \times \frac{22}{7} \times 14 \times 14 \: \: {cm}^{2} }$

$\displaystyle \sf{ = 88 \times 28 \: \: {cm}^{2} }$

$\displaystyle \sf{ = 2464 \: \: {cm}^{2} }$

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