Ladder

The ladder has a length 3.5 meters. He is leaning against the wall so that his bottom end is 2 meters away from the wall.
Determine the height of the ladder.

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Tips to related online calculators

Pythagorean theorem is the base for the right triangle calculator.
See also our trigonometric triangle calculator.

You need to know the following knowledge to solve this word math problem:

planimetrics
Pythagorean theorem
right triangle
triangle
7th grade (12y)
8th grade (13y)

We encourage you to watch this tutorial video on this math problem: video1 video2