Question

The lengths of the sides of MNO are
40 centimeters, 50 centimeters, and
30 centimeters.
Which formula could be used to show
that MNO is a right triangle?
F. 302 + 402 = 502
G. 302 +502 = 402
H. 402+502 = 302
J. 402 - 302 = 502

Answer 1

an angle

Answer 2

to show that a triangle is a right triangle, you need it to follow the pythagorean theorem.
\[a^2+b^2 = c^2\]
c must be the longest side of the triangle, the hypotenuse.
a and b are the other two shorter sides (generally called legs)