Nancy cuts a piece of cardboard in the shape of a triangle. What could be the lengths of the three sides of the triangle?

1cm, 4cm, 5cm

3cm, 4cm, 8cm

3cm, 4cm, 5 cm

4cm, 5cm, 11cm

Question

Nancy cuts a piece of cardboard in the shape of a triangle. What could be the lengths of the three sides of the triangle?

 1cm, 4cm, 5cm

 3cm, 4cm, 8cm

 3cm, 4cm, 5 cm

 4cm, 5cm, 11cm

anonymous · Answer

the Second one is wrong

anonymous · Answer

the sum of any two sides must be greater than or equal to the third side...

anonymous · Answer

The first one.

anonymous · Answer

actually, for this, it must be greater than the 3rd side!!  sorry!

anonymous · Answer

if it was equal, it would just be a straight line.

anonymous · Answer

not the first answer, in other words

anonymous · Answer

I see what you are saying, it's the third one... Greater

anonymous · Answer

yes, that's it... the third one. :)  Sorry for the momentary confusion!!  :)

anonymous · Answer

you just compare 2 of the sides to the third... 

so the last fails because 4 + 5 = 9, and 9 is less than 11.

anonymous · Answer

Thanks, I do remember that now that you mention it!

anonymous · Answer

great :)  glad to help :)