Question

Calucate the area of surface whose radius is 7​

Answer 1

Answer:

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Answer 2

The Area of surface will be "154 unit²". Further explanation is given below.

Step-by-step explanation:

According to the question.

Given,

The radius of the surface, r= 7

We have to find the Area of the surface, then

Area of the surface= πr²

On putting the given value of "r" in the above formula, we get

⇒ Area of the surface= $\frac{22}{7}$×(7)²

⇒                                 =  $\frac{22}{7}$×7×7

⇒                                 = 22×7

⇒                                 = 154 unit²

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