Please help me! Easy question! Please help!
2 answers:
Answer:
I am pretty sure that it's C
Step-by-step explanation:
you need to do a^2+b^2=c^2
Answer:
A
Step-by-step explanation:
Use a^2 + b^2 = c^2 in each case.
A.
9^2 + 12^2 = 15^2
81 + 144 = 225
225 = 225 True
Right triangle
B.
2^2 + 6^2 = (sqrt(38))^2
4 + 36 = 38
40 = 38 False
No right triangle
C.
3^2 + 9^2 = (sqrt(91))^2
9 + 81 = 91
90 = 91 False
No right triangle
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