b. 3 cm, 3 cm, 3 cm

c. 5 cm, 7 cm, 12 cm

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1

JorgeW5St14.02.2022 07:20See below

Step-by-step explanation:

By the Triangle Inequality Theorem, if given side lengths , , and , where is the longest side, then

Problem A

This set of side lengths creates a triangle since

Problem B

This set of side lengths creates a triangle since , which is known as an equilateral triangle since all of its side lengths are equal to each other

Problem C

This set of side lengths creates a triangle since