Question 307227
the leg of the right triangle 1s 24 & hypotenuse is 34 meters

using the pythagorus theorem 

leg1^2 +leg2^2 = hyp ^2

leg1^2 + 24^2 = 34^2

leg1^2 = 34^2 - 24^2

leg1^2 = 1156-576

leg1^2=580

leg1 = sqrt 580
leg1 = 24.08 which is the height of the building

Ananth