Question

can someone tell me if this is right?

Answer 1

this tells you the names for different kinds of triangles
http://www.mathwarehouse.com/geometry/triangles/triangle-types.php

Answer 2

ok so it is obtuse. did i do the solving for x right?

Answer 3

?

Answer 4

No. Not from what I'm understanding.

Answer 5

The formula is a^2+b^2=c^2, where c is the hypotenuse (in this case, 13)

Answer 6

Also, you would use 1/2 of the base, so you would use 12

Answer 7

12^2+x^2=13^2, would be how it looks.
x^2=13^2-12^2