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Calculate the shaded area, give your answer to 2 significant figures.

Calculate the shaded area, give your answer to 2 significant figures.-example-1
User Zelgadis
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1 Answer

7 votes

Answer:

A ≈ 43.7 cm²

Explanation:

The shaded area (A ) is calculated as

A = area of outer circle - area of inner circle

= π × 4.1² - π × 1.7²

= π (4.1² - 1.7²)

= π (16.81 - 2.89)

= π × 13.92

≈ 43.7 cm² ( to 3 significant figures )

User Jeanhee
by
6.5k points