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Mathematics 18 Online
OpenStudy (ab123):

Geometry help!

OpenStudy (ab123):

OpenStudy (ab123):

I thought it was 410, but it isn't an answer

OpenStudy (mathmale):

Find the area of the bigger rectangle. ignore the smaller one for now.

OpenStudy (ab123):

360

OpenStudy (mathmale):

Yes. You multiplied 18 by 20. Correct. Now find the area of the smaller rectangle. What are its dimensions?

OpenStudy (ab123):

The smaller ones are squares with sides of 5, so 25

OpenStudy (mathmale):

|dw:1475018249077:dw|

OpenStudy (mathmale):

The area of the larger rectangle is 360, as you have already found. Use the same procedure to find the area of the smaller rectangle.

OpenStudy (ab123):

25 m?

OpenStudy (mathmale):

How did you get 25? What are the dimensions of the smaller rectangle? They are not 5 by 5.

OpenStudy (ab123):

I'm confused?? I thought it was 5x5

OpenStudy (mathmale):

To find an area, do you multiply or add? or ... ?

OpenStudy (ab123):

multiply

OpenStudy (mathmale):

No, it's not 5x5. Look at the diagram again:

OpenStudy (mathmale):

|dw:1475018481202:dw|

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