3 years ago

What is the answer to this???

2 answers:

5 0

A = √(15²-9²) = √(225-81) = √144 = 12

4 0

A^2+b^2=c^2

a^2+9^2=15^2
a^2+81=225
a^2=144
take the square root of each side
a=12

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