Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Which three lengths could be the lengths of the sides of a triangle?
A. 12 cm, 5 cm, 17 cm
B. 10 cm, 15 cm, 24 cm
C. 9 cm, 22 cm, 11 cm
D. 21 cm, 7 cm, 6 cm
 one year ago
 one year ago
Which three lengths could be the lengths of the sides of a triangle? A. 12 cm, 5 cm, 17 cm B. 10 cm, 15 cm, 24 cm C. 9 cm, 22 cm, 11 cm D. 21 cm, 7 cm, 6 cm
 one year ago
 one year ago

This Question is Closed

geoffbBest ResponseYou've already chosen the best response.5
Remember that the sum of the two shorter legs have to be greater than the longest leg. If they sum to less, they can't even touch. If they sum to the same, they are on the same line as the long leg, and it is not a triangle.
 one year ago

britbrat4601Best ResponseYou've already chosen the best response.0
thanks for your help!
 one year ago

geoffbBest ResponseYou've already chosen the best response.5
A would just be a line, and C and D could not connect to form a triangle.
 one year ago

vitorfleiteBest ResponseYou've already chosen the best response.0
Everyone can be a triangle, scalene triangles.
 one year ago

geoffbBest ResponseYou've already chosen the best response.5
@vitorfleite No they can't. Draw them out on a piece of paper and you'll see.
 one year ago

vitorfleiteBest ResponseYou've already chosen the best response.0
I draw a triangle with the lenghts of C, now.
 one year ago

geoffbBest ResponseYou've already chosen the best response.5
dw:1353900288402:dw You can't make the 12 and 5 cm lines into a triangle. The only way they can connect is as a straight line.
 one year ago

geoffbBest ResponseYou've already chosen the best response.5
dw:1353900366005:dw The two shorter lines cannot connect.
 one year ago

geoffbBest ResponseYou've already chosen the best response.5
In C and D, the shorter lines don't even add up to the big line. It's not mathematically possible for two short lines to create a triangle with a long line unless the two short lines sum to greater than the long line.
 one year ago

vitorfleiteBest ResponseYou've already chosen the best response.0
I understood now, I did wronggg.
 one year ago

geoffbBest ResponseYou've already chosen the best response.5
No worries. I made the exact same false assumption on here a few months ago. :)
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.