PLEASE HELP, this is overdue and I'm struggling. In triangle EFG, E(-2, 7), F(7, -8) and G(-6, -3). Is triangle EFG a right tria ngle? Provide proof of your yes/no answer.
2 answers:
It’s not because if you rotate it a bit you will see that the straight vertical side and straight horizontal side of the triangle form an acute angle, not a 90 degree angle
Answer:
Step-by-step explanation:
You may find the slopes of the segments EG and FG, the shorter sides of the triangle EFG.
Perpendicular lines have negative-reciprocal slopes.
m(EG) = (-3 - 7)/(-6 - (-2)) = -10/-4 = 5/2 m(FG) = (-3 - (-8))/(-6 - 7) = 5/-13 = -5/13 <u>The product of the slopes should be -1:</u>
5/2*(-5/13) = - 25/26 ≠ -1 So the answer is No
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