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Hi! I need help with this geometry problem. Please help me! It is worth 20 points!

Hi! I need help with this geometry problem. Please help me! It is worth 20 points-example-1
User Joshhendo
by
5.1k points

1 Answer

6 votes

Answer:

7π cm²

Explanation:

The area that is shaded is the area of a circle of radius 3 cm, less two times the area of a circle of radius 1 cm. The area of a circle is given by ...

A = πr²

So, the shaded area is ...

A = π(3 cm)² -2(π(1 cm)²)) = π(9 cm² -2 cm²)

A = 7π cm²

User Efleming
by
5.1k points