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Mathematics 11 Online
OpenStudy (winsteria):

MEDAL AND FAN What is the area of the polygon? A. 37.5 yd2 B. 45 yd2 C. 60 yd2 D. 67.5 yd2

OpenStudy (winsteria):

OpenStudy (winsteria):

@iGreen

OpenStudy (winsteria):

@JohnKnows

OpenStudy (winsteria):

@GretaKnows

OpenStudy (igreen):

We have a parallelogram and a triangle.

OpenStudy (winsteria):

Okay

OpenStudy (igreen):

\(A_{triangle} = \dfrac{1}{2} bh\) \(A_{triangle} = \dfrac{1}{2} (5)(3)\) Simplify

OpenStudy (igreen):

\(A_{parallelogram} = bh\) \(A_{parallelogram} = (5)(12)\) Simplify After you've found both areas, add them together.

OpenStudy (winsteria):

Okay

OpenStudy (winsteria):

I got C?

OpenStudy (igreen):

Check again.

OpenStudy (winsteria):

B?

OpenStudy (winsteria):

@iGreen

OpenStudy (igreen):

Multiply 1/2 * 5 * 3, what do you get?

OpenStudy (winsteria):

7.5

OpenStudy (igreen):

Yes, and what's 5 * 12?

OpenStudy (winsteria):

60

OpenStudy (igreen):

Yes, now add 60 + 7.5

OpenStudy (winsteria):

67.5

OpenStudy (igreen):

Yep, that's our answer.

OpenStudy (winsteria):

Thank you

OpenStudy (igreen):

No problem.

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