Question

Find the value of c.

12 cm
с
40 cm
Perimeter
100 centimeters
C=
centimeters
Submit

Answer 1

Answer: 24

Explanation: 12+40 is 52, perimeter is adding up all the sides. since perimeter is 100, then you have to see what numbers you add to get 100. 100-52 is 48. since there are 2 sides, you divide 48 by 2, which is 24.

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Answer 2

`c + c \: + 40 + 12 = 100 \\ 2c + 52 = 100 \\ 2c = 100 - 52 \\ 2c = 48 \\ c = (48)/(2) \\ c = 24cm`