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January 31, 2015

January 31, 2015

Posted by **Haley** on Wednesday, December 5, 2012 at 9:29pm.

- math -
**Jennifer**, Friday, December 7, 2012 at 4:55pmFirst draw a picture. Split the isosceles triangle down the middle of triangle, bisecting the angle x. Now you have divided the isosceles triangle into two right angled triangles, each with area of 1/2 height * base.

So the area of the isosceles is the sum of both of these smaller right angled triangles, or height * base

The base of the right angle triangle is given by base = 10 * sin(x/2)

The height of the right angle triangle is given by height = 10*cos(x/2)

area = 100*cos(x/2)*sin(x/2)

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