Answer:
16 feet
Explanation:
use Pythagorean theorem
a^2 + b^2 = c^2
a^2 + 30^2 = 34^2
a^2 + 900 = 1156
move 900 to the right to leave the a variable by itself
a^2 = 256
take the square root of both sides
a = 16
This ladder and building creates a right triangle with 34 as the hypotenuse and 30 as a side. the Pythagorean theorem says that a^2 + b^2 = c^2 so 900 + b^2 = 1156. b^2 = 256, square root both sides and you get b = 16
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