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Find the value of x. (Hint: Use a trigonometric ratio or what you know about the lengths of sides in special right triangles.)

Find the value of x Hint Use a trigonometric ratio or what you know about the lengths of sides in special right triangles class=

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Hana03
There are many ways to solve this:

First way is to use tangent-

Tan45= 9/x

X= 9/tan45

X=9


The other way is to use 45-45-90 triangle theorem-

In 45-45-90 triangle theorem the sides are congruent so if one side has the measure of 9 then the other side also has to be 9

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