Find the perimeter of a triangle whose side lengths are equal to 1dm. 9cm. 7cm.

univerkov | December 13, 2020 | education

First, let’s translate dm into centimeters:
1) 1 dm = 10 cm.
The perimeter is the sum of all sides:
2) 9cm + 10cm + 7cm = 26 (cm) -Perimeter
Answer: P = 26 cm.

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