Question 288191
On a sunny day, a building and its shadow form the sides of a right triangle. If the hypotenuse is 24 m long and the shadow is 15 m, how tall is the building?
d^2 = leg^2 + (other leg)^2
24^2 = x^2 + 15^2
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x^2 = 24^2-15^2 
x^2 = 351
x = sqrt(351) = 18.73 m
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Cheers,
Stan H.