Answer:
x=2
Step-by-step explanation:
I hope you will understand the way I solved it
if not, dont hesitate to ask questions in the comments...
7
I didn't write language hope u get it
right angle ( right )
Pythagoras' theorem only works for right-angled triangles, so you can use it to test whether a triangle has a right angle or not. In the triangle above, if a 2 < b 2 + c 2 the angle is acute.
-14n - 2r - 21
