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MrRa [10]
3 years ago
12

A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 22 feetfeet less than th

e length of the ladder. find the length of the ladder if the distance from the bottom of the ladder to the building is 1010 feet.
Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0
So basically the ladder is creating a right triangle with the ground and the wall. Ladder is the hypotenuse (h), building = b, ground = g
b = h - 22 ft
g = 1010 ft
use Pythagorean Theorem to determine the length of h:
{c}^{2}  =  {a}^{2}  + {b}^{2}  \\  {h}^{2}  =  {(h - 22)}^{2}  + {1010}^{2}  \\ {h}^{2}  =  {h}^{2} - 44h + 484 + 1020100
The h^2 terms cancel out to = 0
0 = - 44h + 484 + 1020100 \\ 44h = 1020584 \\ 44h \div 44 = 1020584 \div 44 \\ h = 23195.1 \: feet
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