Respuesta :

Answer:

1.54 × 10-4m²

Step-by-step explanation:

Unit Conversion,

r = 7 × 10-3m

Solution,

A = πr2 = π · (7 × 10-3)² ≈ 1.54 × 10-4m²

Answer:

154 mm²

Step-by-step explanation:

Given : -

Radius ( r ) = 7 mm

The value of π = 22/7

To find : Area of a cirlce

Formula : -

A = πr²

A = 22/7 * 7²

= 22/7 * 7 * 7

= (22 * 7 * 7)/7

= 22 * 7

A = 154 mm²

Hence,

the Area of the Circle is 154 mm².

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