## biebergeo Group Title find the 3rd sides mesurment DRAWING ATTACHED PLEASE HELP HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 2 years ago 2 years ago

1. biebergeo

|dw:1335309476619:dw|

2. ianglennon

2

3. biebergeo

what is 2?

4. ianglennon

there's no way to solve that...there must be a right angle or something

Are you trying to find the entire 3rd side of the triangle, or just the piece that is sticking above the circle?

6. biebergeo

the entire side.

7. biebergeo

|dw:1335310909396:dw|

Oh, okay - well that is much easier! We'll need to use the Pythagorean Theorem (a^2+b^2=c^2), plug in our numbers and find the missing side. First off, we need to know which side is the hypotenuse (the longest side of the triangle - straight across from a right angle).

Oh, wait - is this a right angle triangle? If it's not, you can't use the Pythagorean theorem.

10. biebergeo

it does not indicate anything about a right triangle

Okay - I completely understand what you're going through - I can't stand these type of problems that don't give you any extra info.! One sec . . . I'll see if I can figure this out.

Okay, I just figured it out . . .

Remember that "tangent" means that there's a right angle? Well, since the 13200 and the 4000 sides come together, and are tangent, we know that they create a right angle. So, we know that our mystery side is across from the right angle, making that our hypotenuse. So, we're going to plug 13200 in for a^2 and 4000 in for b^2 and see what we get. When we square each: a=174240000 and b=16000000 Now, we'll add them together: 190240000 Okay, now we're looking for c^2. Here's our equation so far: 190240000=c^2 All we need to do now, is take the square root of each side, and we find that c=13792.75172 Hope this helps!

I didn't round the answer - I'm not sure if you wanted it to be rounded.

15. biebergeo

THANK YOU!!!!!! you are the best :)

Ha, ha - you're very welcome! :) Good luck with your math!

17. biebergeo

i need a lot of help haha

:)

While I'm here, do you have any other problems that you need help with?

20. biebergeo

yes ill close this question and form another