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Mathematics 18 Online
OpenStudy (anonymous):

Find the area of the trapezoid shown.

OpenStudy (anonymous):

OpenStudy (anonymous):

1/2 *8 *4 sin(60) + 4*12 +1/2*4*4

OpenStudy (anonymous):

The area for the right triangle at the left is 1/2 *8*4 *sin(60) where 60 is the angle b/n the sides with length 8 and 4.

OpenStudy (anonymous):

Okay. So the equation is 1/2 *8 *4 sin(60) + 4*12 +1/2*4*4 ?

OpenStudy (anonymous):

And the area of the 4 by 12 rectangle is 12*4

OpenStudy (anonymous):

48 is the area of the rectangle, plus the area of the triangle= Area of Trapezoid?

OpenStudy (anonymous):

nope Finally the right triangle at the right of the trapezoid (16-12)*4

OpenStudy (anonymous):

16 + 48 +area of triangle?

OpenStudy (anonymous):

sorry 1/2*(16-12)*4

OpenStudy (anonymous):

So 8?

OpenStudy (anonymous):

yes thus the area is 16sin(60) + 48 +8

OpenStudy (anonymous):

51?

OpenStudy (anonymous):

Nope 8*3^(1/2) +56

OpenStudy (anonymous):

That turns into a radical? @ zekarias

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

They don't want a radical...

OpenStudy (anonymous):

But the answer need.

OpenStudy (anonymous):

The answer should just be a normal integer

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