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Nat2105 [25]
2 years ago
10

Please help me! Easy question! Please help!

Mathematics
2 answers:
Elena L [17]2 years ago
7 0

Answer:

I am pretty sure that it's C

Step-by-step explanation:

you need to do a^2+b^2=c^2

levacccp [35]2 years ago
7 0

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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