Answer:
7 and 13
Step-by-step explanation:
x+y=20
x-y=6
2x=26, x=13, 13+7=20, 13-7=6.
Answer:
Triangle 2
Step-by-step explanation:
That is Pythagorean Theorem, which is only for right triangles. The second triangle has the little square, so you know it is 90 degrees.