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Lesson: Using Properties of 45 – 45 – 90 Degree Triangle

In this lesson, we will use the properties of 45-45-90-degree triangles to find the lengths of the leg or the hypotenuse.

Worksheet: Using Properties of 45 – 45 – 90 Degree Triangle • 2 Questions

Q1:

A ladder 8 meters long leans against a wall. Find the horizontal length between the base of the ladder and the wall given the angle between the ladder and the ground is .

A m
B m
C m
D m
E 4 m

Q2:

Find, in terms of , the length of the hypotenuse of this triangle.

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