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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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Q: How do you find the area and perimeter of triangles?
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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 do you solve special right triangles?

The answer depends on what solving is required: do you need to find the area, perimeter, angles, trigonometric rations?


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


How to measure a triangles perimeter?

You find the three sides of the triangle, and assure that they are all in the same unit, and then add the sides together to find the perimeter of the triangle.


How do you find the perimeter of a parallelogram using Pythagorean theorem?

you can't, because the Pythagorean theorem is for right triangles and the triangles formed by the diagonal of a parallelogram are not right triangles.


What is the fraction of 3 triangles?

The answer will depend on what the fraction relates to: their perimeter, their area, some other aspect.


How can you find the answer for the perimeter and area of a rectangle?

find the perimeter and area of a rectangle that is 15cm long and 5cm wide


How do you find the area or perimeter of composite figures?

Not easily. You need to find the area or perimeter of the components and sum them.


How do you find the perimeter of congruent triangles?

Just add up together their 3 sides