Math
- Thread starter EG555
- Start date
- Joined
- Apr 12, 2005
- Messages
- 11,339
First, please try to use better titles. You are posting to a math website. Does "math" really provide any information?
Similar triangles are PROPORTIONAL. This is all you need.
Comparing the bases 16:24 ==> 2/3
Comparing perimeters (21+21+24)*(2/3)
If you insist, let's call 'a' the length of the side of the smaller triangle: \(\displaystyle \frac{16}{24} = \frac{a+a+16}{21+21+24}
\)
Varous ways to go about it.
Similar triangles are PROPORTIONAL. This is all you need.
Comparing the bases 16:24 ==> 2/3
Comparing perimeters (21+21+24)*(2/3)
If you insist, let's call 'a' the length of the side of the smaller triangle: \(\displaystyle \frac{16}{24} = \frac{a+a+16}{21+21+24}
\)
Varous ways to go about it.
Last edited:
- Joined
- Apr 12, 2005
- Messages
- 11,339
I'm really not encouraged by this. Did you DEFINE 'x'? no. So what is it?
No more guessing. WRITE DOWN definitions of things. This will help you know that smething is amiss - particularly when you are WAY off.
In this case, the perimeter of the larger triangle is 66. The smaller triangle isn't THAT much smaller. '3' is just not reasonable. Something must have gone wrong. You simply must think about these things as you go along. Definitions will help A LOT!