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A triangle has the following measurements. What is a possible length for the third side?
AB = 4, BC = 17, CA = ?
18
5
10
12
 one year ago
 one year ago
A triangle has the following measurements. What is a possible length for the third side? AB = 4, BC = 17, CA = ? 18 5 10 12
 one year ago
 one year ago

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gjhfdfgBest ResponseYou've already chosen the best response.1
Is this all of the question?
 one year ago

KKKKiaaBest ResponseYou've already chosen the best response.0
yup. i'm so lost because i thought triangles are suppose to equal 180.
 one year ago

gjhfdfgBest ResponseYou've already chosen the best response.1
I'm thinking its 18... Its been forver since i've done this... 4+17 = 21 417 = 13 & the number has to be between 13 & 21 if im thinking right... & 18 is the only up there. does it let you know if its right or wrong?
 one year ago

KKKKiaaBest ResponseYou've already chosen the best response.0
i have to submit it first.
 one year ago

KKKKiaaBest ResponseYou've already chosen the best response.0
it was right. thanks!
 one year ago

DirectrixBest ResponseYou've already chosen the best response.0
>yup. i'm so lost because i thought triangles are suppose to equal 180. 180 is the sum of the three interior angles of the triangle. This problem deals with segments.
 one year ago

DirectrixBest ResponseYou've already chosen the best response.0
Use the Triangle Inequality Theorem: One side of a triangle is less than the other two but greater than the positive differeence of the other two.
 one year ago

DirectrixBest ResponseYou've already chosen the best response.0
So, (17  4) < CA < (4 + 17) 13 < CA < 21 @KKKKiaa
 one year ago

KKKKiaaBest ResponseYou've already chosen the best response.0
Yea I figured it out. but thanks.
 one year ago

DirectrixBest ResponseYou've already chosen the best response.0
I saw that you had figured out this problem but wanted to provide the theorem so that you will be empowered to do similar problems. Just saying.
 one year ago
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