PLEASE HELP WILL MARK BRAINLIEST! Also please explain the answer

Each triangle is a right triangle.

Step-by-step explanation:

You can see each one has one 90 degree corner.

13. True

14. True

15. False

Step-by-step explanation:

By using the Pythagorean Theorem a^2+b^2=c^2, you can evaluate whether or not the triangles are right triangles.

13. 8^2+15^2=17^2   ->  64+225=289  -> TRUE

14. 50^2+120^2=130^2  -> 2500+14400=16900  -> TRUE

15. 12^2+35^2=36^2  -> 144+1225 =/=1296 -> FALSE

step-by-step explanation:

where is the questions