Asked by Emmanuel

A ladder leans against a vertical wall of height 12m.if the foot of the ladder is 5m away from the wall,calculate the length of the ladder.
Answered by Scott
the ladder, wall, and ground form a Pythagorean triple (like 3-4-5)

this one is 5-12-13
Answered by Charlotte
Pls calculate it for me
Answered by Samuel
No answer
Answered by Dentu
This resembles the right angle triangle cuz the ladder leaning the wall the foot away from the wall and the length of the ladder represents the right angle triangle.
Let a be the height of the wall (12m),b , the foot of the ladder away from the wall(5m) and c the length of the ladder which is unknown.
.·.a2+ b2=c2
(12m)2+(5m)2=c2
144m+25m =c2
169=c2
Square root of 169& c
13=c
.·.the length of the ladder is 13m
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