An adjustable ladder on the back of the firetruck is needed for firefighters to climb to very high buildings. The maximum angle
1 answer:
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Use the equation=
x^2+5^2=9^2
x^2+25=81
x^2+25-25=81-25
x^2=56
x=7.48331477355
x^2+5^2=9^2
x^2+25=81
x^2+25-25=81-25
x^2=56
x=7.48331477355
I believe it is the first one. A. 