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If a painter has a 10ft. ladder.How high will the ladder go if he sets the base at 6ft. from building?
Wiki User
∙ 14y ago
Applky Pythagoras
h^2 = a^2 + b^2
ladder is 'h' = 10 ft
base is 'b' = 6ft.
Hence
10^2 = a^2 + 6^2
a^2 = 10^2 - 6^2
Factor
a^2 = (10 - 6)(10 + 6)
a^2 = 4(16)
a^2 = 64
a = sqrt(64)
a = 8 ft ( the height up the wall.
lenpollock
Wiki User
∙ 14y agosqrt(102 - 62) =sqrt(100-36) =sqrt(64) = 8 ft
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