(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

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. Relevant 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. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: High School Geometry Help

**Physics Forums | Science Articles, Homework Help, Discussion**