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Perimeter: add the three sides.
Area: Use the formula area = (1/2) x base x height. Please note that the height must be measured perpendicular to the base. Depending on the data known, you might also use other formulae; for example, if you know the lengths of the three sides, you can use Heron's formula - if you need it, look it up on the Wikipedia.
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How do you find perimeter and area of triangles?
Perimeter . . . add up the lengths of all three sides. Area . . . multiply (half the length of the base) by (the height).
If two triangles have the same perimeter will they have the same area?
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How to find the perimeter and area of a rectangle?
To find the perimeter you add and to find the area we multiply.
What are formulas for area and perimeter?
Perimeter is the distance around the figure. Add all sides. Area depends on the figure. Triangle --- 1/2 bh Rectangle --- lw. Others --- divide into triangles and find the area of each triangle then add all together.
How do you find perimeter of triangles?
You simply just add up all of the sides
