42 + b2 = 122
16 + b2 = 144
b2 = 128
b = 11.3 ft
Armando V.
asked 07/29/19How high up the wall can a 12-foot ladder reach if its base is 4 feet from the wall? Round your answer to the nearest tenth of a foot if necessary.
42 + b2 = 122
16 + b2 = 144
b2 = 128
b = 11.3 ft
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