# algebra

I have the question posted here ~ ht tps:// brainly .com/question/12664261
An image is attached, I really can't understand the perimeter of the triangle.
triangle #1 = a= 18 b= 3 c= 42
triangle #2 = a= 9 b= 21 c=9
I tried calculators but they don't work.

1. 👍 0
2. 👎 0
3. 👁 63
1. you do know that the perimeter is just the sum of all the sides, right?
you cannot add 3 numbers?

your URL just took me to a google search form brainly.com, not your image.

1. 👍 0
2. 👎 0
2. Sorry, there are spaces in the link, and really? I used the perimeter calculator to add all the sides together but it was saying the numbers weren't acceptable.

1. 👍 0
2. 👎 0
3. well, in that case, you have to ask why that might be.
Take a look at the first "triangle."
Suppose you lay down the side c, of length 42
Now stretch out the other two sides. They are not long enough to even cover the base, let alone rise above it to form a triangle.

In any triangle, each side must be less than the sum of the other two sides.
So, if the sides, in order of length are a,b,c then you must have
b-a < c < b+a

This is not true for either of the figures listed above.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### HELP!!(english)

Follow this l*ink to see question!! It's on Brainly. (I think it's the first option... also, get rid of the spaces in the l*ink, i just put them there so jiskha would let me post) ht tps :/ /brainly. com /question/ 3764416

asked by mali on May 16, 2017
2. ### calorimetry

please, someone answer my question i posted already I answered your question within 15 minutes. It is posted. Hit the refresh button of your computer. sorry that my question took youthat long, but it was of great help. glad to

asked by claudia on January 18, 2007
3. ### Statistics

Find the three median y-values that would form the summary points of the median-median line for the dataset in the table. Copy and paste my question into brainly and you'll find an image of the numbers and dataset.

asked by BoB on December 12, 2018
4. ### For Dr.Bob222

I posted a question under First Amendment, would you look at the question and give your opinion? I'm not finding it Carrie. I Posted the question under first amendment question I will pass since government is not my field.

asked by Carrie on January 25, 2007
5. ### Bob Pursley

Bob: Thank you for answering my Chemistry question. I apologize that it was on there twice. I accidentally posted again the same question instead of a different question. You answered the first question with precision. Thank you

asked by Mom on October 9, 2011
6. ### To whoever "Anonymous" is

You posted this: Posted by Anonymous on Thursday, July 25, 2013 at 10:16am. Provide a brief overview of government policy toward Native Americanâ€™s during the period of 1850 to 1900 and the impact this policy had on their lives.

asked by Writeacher on July 25, 2013
7. ### Social Studies -- Merisa

I've reposted your question because it was posted as an answer to another question. Next time, please click Post a New Question when you want to ask a question. Your question: Was the U.S right to become an imperialist country and

asked by Ms. Sue on March 7, 2007
8. ### Thank You MathMate

Thank you for assisting me with my MATLAB question. If I posted this on the actual question you never would of seen it. What you suggested to do worked and produced the results I was suppose to get. I wanted to say thank you. And

asked by Lee on July 19, 2011
9. ### critically anazlyzing images and using them

Question 1 Which of the following is NOT a question to consider when analyzing visual images? Who produced the image? If there is a foreground and a background, what is in each? What are its parts, do they belong together, or do

asked by christopher on April 28, 2010
10. ### Science - - Second Try

I'll repost the question I posted about thirty five minutes ago. It's still unanswered. Hello. (= I can't find the answer to this question: What are the five major classes of Chordates? The following question is: Using the list

asked by Eve on January 12, 2008
11. ### BIO

I really need help with this question, Damon gave me an answer, but I do not know if it is for this question or for the one posted after. This is the only question I need help on, I promise not to post any other questions after

asked by Andrea on July 7, 2010

More Similar Questions