Pricilla077 3 years ago Which set of measurements would NOT form a triangle? a) 7, 12, 12 b) 7, 12, 5 c) 7, 12, 17 d) 7, 12, 7

1. Loujoelou

For the measurements to be good, two sides added together have to be greater than the other side. The only one that doesn't work here would be B, because 7+5=12 abd 12 isn't greater than 12. So B would not form a triangle.

2. Le_Bobster

B wouldn't because the two sides must be greater when added up then the biggest angle

3. Pricilla077

ohhhh

4. Pricilla077

so its c ?

5. Le_Bobster

No, the greatest angle measure has to be less than the other two added up. so C cant be it because 7+12>17 so it could form a triangle

6. Pricilla077

but 7+12= 19 > 17

7. Le_Bobster

Exactly, when the sum is greater, which in this case 19>17 it means that it can form a triangle. This question is asking which one cannot form a triangle.

8. Pricilla077

omg, i didnt see the not lol

9. Le_Bobster

Its fine good work, Im glad that you know have an understanding of the material. Have a good day!

10. Pricilla077

none -.-

11. Le_Bobster

B wouldnt because 7+5=12, the sum needs to be greater not equal.