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Sagot :
To get the answer we can use pythagorean theorem.
a^2+b^2=c^2, where c is our 15 foot ladder and a is our 9 (no matther a or b)
We can substitute our data into eq
[tex]9^2+b^2=15^2 \\ 81+b^2=225[/tex] /subtract 81 both sides
[tex]b^2=225-81 \\ b^2=144 \\ b=12[/tex] -
b=12 - its our answer
a^2+b^2=c^2, where c is our 15 foot ladder and a is our 9 (no matther a or b)
We can substitute our data into eq
[tex]9^2+b^2=15^2 \\ 81+b^2=225[/tex] /subtract 81 both sides
[tex]b^2=225-81 \\ b^2=144 \\ b=12[/tex] -
b=12 - its our answer
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