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If you place a 23-foot ladder against the top of a building and the bottom of the ladder is 11 feet from the bottom of the building, how tall is the building? Round to the nearest tenth of a foot. PLEASE HURRY

If you place a 23foot ladder against the top of a building and the bottom of the ladder is 11 feet from the bottom of the building how tall is the building Roun class=

Respuesta :

Litzy01

Answer:20.2

Step-by-step explanation:

a^2+(11)^2 =23^2 a^2 +121=529

a^2=408 a=20.199009…

a=20.2

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