Question

Find the length of the unknown side. Round your answer to the nearest tenth. (4 points)






Group of answer choices


65.4


70.5


72.8


93.0

Answer 1

answer: 72.8

explanation: a^2+b^2=c^2
18^2+b^2=75^2

18^2=324

75^2=5625

324+b^2=5625
-324 -324
b^2=5301
take the square root of both sides
√b^2=√5301
b=72.807966
so b=72.80