- #1
little_ein
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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.
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.
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