to find a perimeter of a triangle you need the add the lengths of the sides. So in this case, the sides are 18 + 32 + 252 so the answer would be 302meters Just a little hint : keep in mind what the measurements are in (i.e. centimeters, meters...) . you might to convert for some problems.
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The perimeter of a rectangle is calculated by adding up the lengths of all its sides. In this case, the rectangle has two sides that are 6 meters long and two sides that are 3 meters long. Therefore, the perimeter would be 6m + 6m + 3m + 3m = 18 meters.
The perimeter of 4 meters by 5 meters is 18. Is the figure a square? if it is then the answer is 18m squared. The first answer is correct if the shape is a parallelogram; the second is rubbish. A square cannot be 4m by 5 m because one of the defining characteristics of a square is that its sides are the same length! The perimeter is the length (therefore metres, NOT m sq) around the shape. 4m+5m+4m+5m = 18m.
20
Area_of_triangle = base x height / 2 area = 18m x 20m / 2 = 180m2
18m=18000mm i belive :)