SOLUTION: how do u find the unknown length of a triangle that has a primeter of 36 plus to sides that measure 12 and 8cm

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Question 423629: how do u find the unknown length of a triangle that has a primeter of 36 plus to sides that measure 12 and 8cm
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
P=a+b+c

36=12+8 + c
36=20+c
36-20=20-20+c
16=c
c= 16 cm.

Check: See if the 3 sides add up to 36.
12+8+16=36 It checks.

Dr. R^2