Find the perimeter of a triangle with sides: a) 3 cm, 4 cm and 5 cm; b) 3 dm, 3 dm and 3 dm; c) 7 m, 6 m and 10 m.
| December 13, 2020 | education
The perimeter is the sum of all sides, respectively:
a) 3cm + 4cm + 5cm = 12 (cm) – Perimeter
b) 3 dm + 3dm + 3dm = 9 (dm) – Perimeter
c) 7m + 6m + 10m = 23 (m) – Perimeter
Answer: 12 cm; 9 dm; 23 m.
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