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Mathematics 10 Online
OpenStudy (anonymous):

If G = H, find the perimeter of FGH. A. 18 B. 28 C. 38 D. 48

OpenStudy (anonymous):

OpenStudy (mathstudent55):

|dw:1403744735686:dw|

OpenStudy (mathstudent55):

In a triangle, if two angles are congruent, then their opposite sides are congruent.

OpenStudy (anonymous):

They're not congruent though? @mathstudent55

OpenStudy (mathstudent55):

You see the two red marks on two of the angles of the triangle?

OpenStudy (anonymous):

Yes.

OpenStudy (mathstudent55):

What do those red marks mean?

OpenStudy (anonymous):

They're congruent lol

OpenStudy (anonymous):

How do I use that to find FH though?

OpenStudy (mathstudent55):

That means opposite sides are congruent. That let's find the length of the side that was not given.

OpenStudy (mathstudent55):

This is the triangle you have, right? |dw:1403745487721:dw|

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