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lozanna [386]
3 years ago
14

A 15-foot ladder is leaning against a 30-foot wall. The bottom end of the ladder is 9 feet from the wall. How many feet above th

e ground does the ladder touch the wall?
Can you help me break it down it's been a while please thanks.

Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
8 0
Applying Pythagoras theorum to the situation ;

\alpha ^2 +  \beta ^2 = C^2 \\ \\ 9^2 +  \beta ^2 = 15^2 \\ \\ 81 +  \beta ^2 = 225 \\ \\ =>  \beta ^2 = 144 \\ \\ =>  \beta = 12 cm

Thus, the answer is 12 ft.
lana [24]3 years ago
6 0
The answer is 12 feet tall... look at pic

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