Find triangle side lengths
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- Posts: 73
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Find triangle side lengths
What is answer for this. Thanks for help.
Nina has some sticks of different lengths.
She can lay the sticks end to end to make
triangles, like this:
Nina chooses sticks with lengths
2cm; 3cm; 5cm; 6cm; 8cm;
Which of these sets of three sticks can Nina
use to make a triangle?
A 2cm, 3cm, 5cm
B 2cm, 3cm. 6cm
c 2cm, 3cm, 8cm
D 3cm,5cm,6cm
E 3cm, 5cm, 8cm
Nina has some sticks of different lengths.
She can lay the sticks end to end to make
triangles, like this:
Nina chooses sticks with lengths
2cm; 3cm; 5cm; 6cm; 8cm;
Which of these sets of three sticks can Nina
use to make a triangle?
A 2cm, 3cm, 5cm
B 2cm, 3cm. 6cm
c 2cm, 3cm, 8cm
D 3cm,5cm,6cm
E 3cm, 5cm, 8cm
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- Posts: 12820
- Joined: Fri Sep 15, 2006 9:51 am
- Location: The Seaside
Re: Find triangle side lengths
what sort of triangle are you trying to make?
Re: Find triangle side lengths
Try drawing them and thinking whther they COULD make a triangle.
For example no-one can make a triangle with sticks 5cm, 10cm and 17cm because .... think about it!
For example no-one can make a triangle with sticks 5cm, 10cm and 17cm because .... think about it!
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- Posts: 73
- Joined: Sun Jan 20, 2013 11:22 am
Re: Find triangle side lengths
https://www.dropbox.com/s/mwbe6lr9zgvil ... 5%2022.jpg" onclick="window.open(this.href);return false;
Please find above
Please find above
Re: Find triangle side lengths
I know the answer but you need to think about how you know that some of these options just won't work!
Re: Find triangle side lengths
This has been asked and answered before.