Math, asked by sushantha7870, 1 year ago

a circular well has radius 3m if a platform of uniform width of 1.5 m is laid around it, find the area of the platform?

Answers

Answered by prashilpa
3

Answer:

35.35 square meters.

Step-by-step explanation:

The platform around a circular well is also circular.

It will be in the shape of a ring, with inner radius as 3m and outer radius is 3 + 1.5 = 4.5m. (1.5 meters is the width of the platform)

Hence it is given that

Inner radius = r = 3m

Outer Radius = R = 4.5m.

Area of the platform = π(R² - r²)

Substituting the values, we get

= 22(4.5² - 3²)/7

= 22(11.25)/7

= 35.35 square meters.

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