P = a + b + c; P = 28, a = 5, b = 11 (Perimeter of a triangle)

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Mathematics

Guest

25 March, 10:49

P = a + b + c; P = 28, a = 5, b = 11 (Perimeter of a triangle)

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Answers (2)

Know the Answer?

Isabell Hogan · Answer 1

c = 12.

Step-by-step explanation:

Fill in what you know. 28 = 5 + 11 + c. Add 5 and 11 together. 28 = 16 + c. Then subtract 16 from both sides 28 - 16 = 16 - 16 + c. Then the number you have left is your answer.

Theodore Barton · Answer 2

c=12

Step-by-step explanation:

P=a+b+c

28=5+11+c; combine 5 and 11.

28=16+c; subtract 16 from each side to get c

28-16=12