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Mathematics 7 Online
OpenStudy (anonymous):

attachment.

OpenStudy (anonymous):

Hmmm would like to see dat attachment.

OpenStudy (anonymous):

find the area

OpenStudy (anonymous):

Break it into 5 triangles. 1/2 base * height

OpenStudy (anonymous):

I did

OpenStudy (anonymous):

You know the base is 20, divide it by two to get it into a right triangle, in order to find height from base to middle.

OpenStudy (anonymous):

You then use pythag theorem in order to get the height then solve.

OpenStudy (anonymous):

Wait you only know one length so how do you use pythagorean theorem?

OpenStudy (anonymous):

Just use the formula to save yourself time. A = 1.72 * x^2

OpenStudy (anonymous):

x being the length of one side.

OpenStudy (anonymous):

What do you get for the area? I get 688.2

OpenStudy (anonymous):

688

OpenStudy (anonymous):

This only works if all the sides are the same.

OpenStudy (anonymous):

I have more like these coming up T.T

OpenStudy (anonymous):

Im sorry i made a mistake, break it into three triangles. So that two sides of the triangle are both 20.

OpenStudy (anonymous):

Then pythag.

OpenStudy (anonymous):

So it's not 688?

OpenStudy (anonymous):

no it is.

OpenStudy (anonymous):

I ment for my first explanation.

OpenStudy (anonymous):

Oh okay :P

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