Question

What is the area, in square units, of an isosceles right triangle with a hypotenuse of 20 units?

Answer 1

20^2 = 2x^2

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

Answer 2

I love this drawing tool.

Answer 3

how do you change color and size?

Answer 4

Its a chrome extension.

Answer 5

how to get from 20 to x lol

Answer 6

20^2 = 20*20 = ?

Answer 7

oh pythagorean theorem?

Answer 8

I think I worked it out

Answer 9

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

Answer 10

thx

Answer 11

No problem.