Question

Sheila is climbing on a ladder that is attached against the side of a jungle gym wall.She is 5 feet off the ground and 3 feet horizontally from the base of the ladder,which is 15 feet from the wall.How high up the wall is the top of the ladder/

Answer 1

similarity, imagine 2 triangles, one smaller than the other.

triangle 1 : base=3 height=5

triangle 2 : base=15 height= unknown

15/3 =5

5×5=25

the top of the ladder is 25 feet up the wall