Hanka cut the 20 cm long straws into three pieces. Each piece had a length in cm. Then, with these three pieces, she tried to make a triangle.

a) What circuit has each of the triangles?
b) How long can the longest side measure?
c) How many different triangles could be made?

Correct answer:

o =  20 cm
a =  9 cm
n =  8

Step-by-step explanation:

o=20=20 cm
 a+b+c = 20 a < b+c 9 < 9 + 2 a=9=9 cm
2,9,9 3,8,9 4,7,9 4,8,8 5,6,9 5,7,8 6,6,8 6,7,7  n=8

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