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Mathematics 19 Online
OpenStudy (anonymous):

What is the area of the trapezoid? A. 28 in2 B. 35 in2 C. 40 in2 D. 56 in2

OpenStudy (anonymous):

OpenStudy (vera_ewing):

Okay so first, the formula for the area of a trapezoid is

OpenStudy (vera_ewing):

So, what are \[b_{1} and~b_{2}\]

OpenStudy (anonymous):

10 & 4?

OpenStudy (vera_ewing):

Yes, good job. Now, what is the height?

OpenStudy (anonymous):

5.

OpenStudy (vera_ewing):

No, that's not the height. The height is 4 in. Does that make sense?

OpenStudy (anonymous):

ohhhhh, okay. yes I see

OpenStudy (anonymous):

the inside 4 right

OpenStudy (vera_ewing):

Yes.

OpenStudy (vera_ewing):

Now, plug in the numbers into the equation and show me what you get.

OpenStudy (vera_ewing):

This is the equation:

OpenStudy (anonymous):

10+4= 14 14 * 4 56?

OpenStudy (anonymous):

56/2

OpenStudy (anonymous):

28

OpenStudy (vera_ewing):

Yes, good job! :)

OpenStudy (anonymous):

Thanks! :)

OpenStudy (vera_ewing):

You're welcome :)

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