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Mathematics 23 Online
OpenStudy (anonymous):

The figure below shows a shaded region and a nonshaded region. Angles in the figure that appear to be right angles are right angles.

OpenStudy (anonymous):

OpenStudy (anonymous):

What is the area, in square feet, of the shaded region? What is the area, in square feet, of the nonshaded region?

OpenStudy (anonymous):

@mathslover

OpenStudy (anonymous):

anyone???????????? ill give a medall

OpenStudy (anonymous):

@CallMeKiki

OpenStudy (anonymous):

@Michele_Laino

OpenStudy (anonymous):

@paki

OpenStudy (paki):

@CausticSyndicalist please help....

OpenStudy (kash_thesmartguy):

I would, probably divide the shaded area into a rectangle and a trapezoid

OpenStudy (michele_laino):

we can see the shaded region as composed by the subsequent geometrical shapes: |dw:1435426492812:dw|

OpenStudy (kash_thesmartguy):

Then, you need to find the area of the trapezoid and the rectangle and add them both up. The answer is area for the shaded region.

OpenStudy (kash_thesmartguy):

Area of a trapezoid: A=[(a+b)/2]h

OpenStudy (kash_thesmartguy):

Area of a Rectangle: L*B

OpenStudy (kash_thesmartguy):

Fill in the values.

OpenStudy (kash_thesmartguy):

Try typing: "Area of Trapezoid" on google. There you will find a calculator, you can fill the values in there!

OpenStudy (anonymous):

what arwe the values

OpenStudy (anonymous):

like base base ansd hieght

OpenStudy (kash_thesmartguy):

1 for a, 4 for b, 10 for h.

OpenStudy (kash_thesmartguy):

The answer is 25 ft for the area of the trapezoid. Then, for the area of a rectangle: 8*2=16. Add: 25+16=Your Answer for no.1

OpenStudy (anonymous):

so 41

OpenStudy (kash_thesmartguy):

Is that in the options?

OpenStudy (anonymous):

Yes it is and okay do u know number 2 by any chance

OpenStudy (kash_thesmartguy):

I think we need to divide it into 1 trapezoid and 3 rectangles

OpenStudy (anonymous):

Yeah i do too i just get confused on the math part

OpenStudy (kash_thesmartguy):

So do it, find the area for all figures, then add the area up and there is your answer for no.2!

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