One side of the triangle is 3 m 4 dm 8 cm, the second 29 dm, and the third 4 m 2 cm. Find the perimeter of the triangle.
The perimeter of a triangle is equal to the sum of its sides. Based on this, you can build a formula:
P = AB + BC + AC, where:
AB = 3 m 4 dm 8 cm;
BC = 29 dm;
AC = 4 m 2 cm.
We will translate these lengths into one value, we will take centimeters for it:
3 m 4 dm 8 cm = 348 cm, 29 dm = 290 cm, 4 m 2 cm = 402 cm.
Find the perimeter:
P = 348 + 290 + 402 = 1040 cm – the answer.
Let’s convert to meters, centimeters and decimeters.
1040 = 10 m 4 dm, or 104 dm, or 10 m 40 cm.
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