contestada

17. The base of a 30-foot ladder is placed 11 feet from the building. How
high up the building does the ladder reach, to the nearest foot? *

Respuesta :

We would use the Pythagorean thrm

a=11 b=height of building c=30

11^2+b^2=30^2
121+b^2=900
b^2=779 *square root both sides*
b=28 feet

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