de9stn4himadis de9stn4himadis

09-12-2016
Mathematics

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. Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this triangle?

5 cm and 8 cm
6 cm and 7 cm
7 cm and 2 cm
8 cm and 8 cm

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Lampa20 Lampa20

09-12-2016

For triangle to be possible to draw there is one condition that it needs to suit.
The condition is:
largest side has to be shorter than sum of others 2.

in first case is:
13 = 8+5 which is equal but not greater than 13.

Last case:
13 < 8+8 which means that remaining lenghts are

8 and 8

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