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What is the area of the shaded region?

What is the area of the shaded region?-example-1

1 Answer

11 votes

9514 1404 393

Answer:

434 -49π ≈ 280.1 cm²

Explanation:

The shaded area is the difference between the enclosing rectangle area and the circle area.

The rectangle is 14 cm high and 31 cm wide, so has an area of ...

A = WH

A = (31 cm)(14 cm) = 434 cm²

The circle area is given by ...

A = πr²

A = π(7 cm)² = 49π cm²

__

The shaded area is the difference of these, so is ...

shaded area = rectangle - circle

= (434 - 49π) cm² ≈ 280.1 cm²

User Nick Rempel
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