## anonymous one year ago What is the area, in square units, of an isosceles right triangle with a hypotenuse of 20 units?

1. Jhannybean

|dw:1441658354046:dw|

2. anonymous

20^2 = 2x^2 area of triangle should be (x^2)/2

3. Jhannybean

I love this drawing tool.

4. anonymous

how do you change color and size?

5. Jhannybean

Its a chrome extension.

6. anonymous

how to get from 20 to x lol

7. anonymous

20^2 = 20*20 = ?

8. anonymous

oh pythagorean theorem?

9. anonymous

I think I worked it out

10. Jhannybean

First figure out what x is equal to. $20^2 = x^2+x^2$$20^2 = 2x^2$$\color{red}{x^2}=\frac{20^2}{2}$$A_{\triangle} = \frac{1}{2}b\cdot h =\frac{1}{2} x \cdot x =\frac{1}{2}\color{red}{x^2}$

11. anonymous

thx

12. Jhannybean

No problem.