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**1. Homework Statement**

Find the area of the shaded region. Leave your answer in terms of pi.

The circle has a right triangle inside of it, with the leg length of 18ft.

Area of a shaded region of a circle = Area of a sector of a circle minus the Area of the triangle.

**2. Homework Equations**

Area of a shaded region = the measure of the arc divided by 360 multiplied by the area of a circle.

Area of a circle = the product of pi and the square of the radius.

Area of a triangle = the product of the base and the height divided by half.

**3. The Attempt at a Solution**

Area of a shaded region= 90/360= multiplied by pi18squared.

= .250 multiplied by pi324

= 81pi

Area of a triangle = half (18 multiplied by 18)

= half (324)

=162ft

Some the end equation should be 81pi minus 162=?

The problem is I don't know how to get the answer in terms of pi.

So how would I write this in terms of pi.

Thanks for the help

**1. Homework Statement**

**2. Homework Equations**

**3. The Attempt at a Solution**