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Teacher

# How do you find the side lengths of a 20-70-90 triangle

How do you find the side lengths of a 20-70-90 triangle

### 1 Answer

1. There are an infinite number of different sets of lengths that
will do it.

You have to start by choosing the length of one side, and when
you

do that, here’s how to find the others:

Shorter leg = (longer leg) x 0.364

Shorter leg = (hypotenuse) x 0.342

Longer leg = (shorter leg) x 2.747

Longer leg = (hypotenuse) x 0.94

Hypotenuse = (shorter leg) / 0.342

Hypotenuse = (longer leg) / 0.94