SOLUTION: Please can you help me with this one?
The base of a 30-foot ladder is 10 feet from a building. If the ladder reaches the flat roof, how tall is the building?
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Question 122303: Please can you help me with this one?
The base of a 30-foot ladder is 10 feet from a building. If the ladder reaches the flat roof, how tall is the building?
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
YU HAVE A RIGHT TRIANGLE WITH AN HYPOTENUSE=30FEET & 1 BASE=10 FEET.
THE OTHER SIDE WE CALL A.
A^2+10^2=30^2
A^2+100=900
A^2=900-100
A^2=800
A=SQRT800
A=28.28 FEET IS THE HEIGHT OF THE BUILDING.
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