Math Is Fun Forum

cluelessinmath

Member

Registered: 2010-01-11

Posts: 26

Please Help me! Can this be solved?

This is grade 10 math. Complement and Synthesis.

10. Similar triangles ABC, DEF and DGC are shown in the figure below.

http://i206.photobucket.com/albums/bb30 ... math10.jpg

The area of the triangle ABC is 4 times the area of triangle DGC.
The ratio of the perimeters of triangle DGC and DEF is equal to 2/3.

Given the segment CF is 4 cm long. Determine the length of side AC.
Round off to the nearest tenth. Show Work!

Literally I didn't even touch this one because for somewhat reason I think this # cannot be solved(I think the person who created this test, might have omitted some info, I think) Well you can be the judge of that.
I mean I do not have anything in my textbooks telling me how to solve this problem, even my teacher is clueless, she couldn't solve it either.
So if you can solve this and make me understand it for once and for all then that would make you my Math God.
Thanks again, hoping to see if anybody can solve this baby.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Please Help me! Can this be solved?

Hi cluelessinmath;

Please continue with #7 before posting more problems. I am going over that so you can learn it. I do require your total attention though.

Here is #7:

http://www.mathisfunforum.com/viewtopic.php?id=13424

I have done half, you must now try the second half on your own. I will guide you through.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.