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Mathematics 15 Online
OpenStudy (anonymous):

I need help with a few more question with my geometry homework help me please.

OpenStudy (anonymous):

Well, what is your geometric inquiry?

OpenStudy (mathmale):

Happy to help. Please post just one question at a time, OK?

OpenStudy (anonymous):

Im stuck on 18 ,19 right now

OpenStudy (anonymous):

@mathmale

OpenStudy (mathmale):

Again, one question at a time, please. On which one of your two questions should we focus first?

OpenStudy (anonymous):

sorry 18 please

OpenStudy (mathmale):

What have you tried already? One approach to solving this problem is to draw either vertical or horizontal partitioning lines to define simpler, smaller areas, to find the areas of each, and then to sum up these individual areas.

OpenStudy (anonymous):

ok i will do that on my paper

OpenStudy (mathmale):

For example, just by drawing one horiz. line, I'd get|dw:1409099104261:dw|

OpenStudy (mathmale):

what is the length represented by ' ?? " ?

OpenStudy (anonymous):

7

OpenStudy (mathmale):

Actually, the entire top edge of the figure has length 7. so the length represented by ' ?? ' could not be 7; it must be smaller. Try again.

OpenStudy (anonymous):

oh my bad we are doing 18 I was looking at 19

OpenStudy (anonymous):

3.5

OpenStudy (mathmale):

Yes. All the more reason for posting just one problem at a time. Hint: No, not 3.5. Hint #2: What is 7 - ( 2 + 2 )?

OpenStudy (anonymous):

3

OpenStudy (mathmale):

right. So, on the left, you have a rectangle of dimensions 2 by 4; in the middle you have another rectangle, this one of dims. 2 by 3, and on the right you have a third rec. of dims 2 by 4. Calc. the 3 areas and add them together and you'll be done. sorry, but I have to get off the 'Net now. I'll be back on later. Nice working with you!

OpenStudy (anonymous):

thank you for everything

OpenStudy (anonymous):

31

OpenStudy (anonymous):

32

OpenStudy (anonymous):

34

OpenStudy (mathmale):

The rectangle on the left is 4 units high and 2 units wide. What is the area of this rectangle? The rectangle in the middle is 2 units high and 3 units wide. Area? The rect. on the right is 4 units high and 2 units wide. Area? What is the sum of these 3 areas?

OpenStudy (anonymous):

22

OpenStudy (mathmale):

Your '22' looks good: It's the sum of 8 and 6 and 8. any further questions about this problem?

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