A 20-ft ladder leans against a building so that the angle between the ground and the ladder is 72 degrees. how high does the lad
2 answers:
Answer:
19.02 ft.
Step-by-step explanation:
Please find the attachment.
We have been given that a 20-ft ladder leans against a building so that the angle between the ground and the ladder is 72 degrees.
We can see from our attachment that ladder forms a right triangle with building and ground.
The side of 20 ft is hypotenuse and side h is the opposite side to angle 72 degree.


Switch sides:





Therefore, the ladder would reach 19.02 feet high on the building.
Sin(72°)=x÷20ft.
sin(72°)×20ft.= 19ft 252 inches
the ladder reach 19ft 252 inches tall on the building.
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Step-by-step explanation:
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Answer:
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