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Mathematics 6 Online
OpenStudy (anonymous):

How would I do this problem? In trapezoid PQRS, PQ is parallel to SR. Find the area of PQRS. Leave your answer is simplest radical form.

OpenStudy (anonymous):

OpenStudy (anonymous):

ok so do you know 30 60 90 triangles?

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

more importantly do you know the sides ratio

OpenStudy (anonymous):

Explain please.

OpenStudy (anonymous):

well if i have a 30 60 90triangle and the side opposite to the 30 degrees is 1 what is the measure of the side opposite to the angle 60 degrees

OpenStudy (anonymous):

2

OpenStudy (anonymous):

good, so in your drawing, if i draw a line from the top edge (PQ) straight to the bottom edge (SR) i create a 30 60 90 right?

OpenStudy (anonymous):

Right

OpenStudy (anonymous):

so what is the measure of this newly created side call it h

OpenStudy (anonymous):

I don't know

OpenStudy (anonymous):

note that this side is opposite to the 30 degree angle

OpenStudy (anonymous):

So it would be 8?

OpenStudy (anonymous):

well give me a sec to draw this

OpenStudy (anonymous):

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