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Mathematics 17 Online
OpenStudy (anonymous):

Find x in these 45 - 45 - 90 triangles. x = ?

OpenStudy (openstudier):

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OpenStudy (openstudier):

You can prove this using the Pythagorean theorem.

OpenStudy (anonymous):

Thtz wht it is an i don't understand.. Wht is x.?

OpenStudy (openstudier):

You can use my diagram of a 45-45-90 triangle.

OpenStudy (anonymous):

Okay.. How do i slove for x.?

OpenStudy (openstudier):

Well if the hypotenuse of your triangle is 8, and the side is x, the hypotenuse is actually x radical 2.

OpenStudy (openstudier):

\[x \sqrt{2}=8\]

OpenStudy (anonymous):

Okay tht could be the answer.. Lol, thank u.

OpenStudy (anonymous):

Can u help me with the other question.?

OpenStudy (anonymous):

Enter the trigonometric equation (sin, tan, or cos) you would use to find x in the following right triangles. Do not solve the equations. One side is 9 the other x and 45*

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