Question

what is the length of s in the triangle

Answer 1

http://www.mathwarehouse.com/geometry/triangles/right-triangles/images/picture-45-45-90-special-right-triangle.gif

Answer 2

@hartnn

Answer 3

if you're not prepared to get into memorizing the special right triangles, you could always use trig or the Pythagorean theorem

Answer 4

also, when angles of a triangle are equal, so are their opposing sides

Answer 5

i did the pythagorean theorem but i didnt get a right answer

Answer 6

i did a^2+b^2=c^2
√ 72^2+6^2=c^2

Answer 7

6^2+s^2=(√72)^2
36+s^2=72
s^2=36
s=6

Answer 8

c is always the hypotenuse (largest side). That was your error