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Q: How do you calculate the perimeter of a triangle?

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The perimeter of a triangle does not provide sufficient information to calculate its area.

Find the perimeter of a right triangle with legs measuring 3 and 4

Semi-perimeter means half the perimeter. Calculate the perimeter, then divide that by 2 to get the semi-perimeter.

The lengths of two sides of a triangle do not provide enough information to calculate either its perimeter or its area.

The perimeter is the sum of all four sides, so you need to calculate 2 x length + 2 x height. The fact that the rectangle is at the bottom of a triangle is irrelevant - except that in specific diagrams, information may be provided that lets you calculate the length or the width of the triangle.

the ratio of the perimeter of triangle ABC to the perimeter of triangle JKL is 2:1. what is the perimeter of triangle JKL?

By adding together the 3 line segments.

-- Measure or calculate the length of each of its 3 sides. -- Add the lengths of its 3 sides. -- The sum is the perimeter of the triangle.

-- Measure or calculate the length of one side. -- Measure or calculate the length of another side. -- Measure or calculate the length of the only remaining side. -- Add the three numbers. The sum is the perimeter of the triangle. ----------------------------------- The perimeter is the sum of all three sides. Sometimes it is unnecessary to compute each side length; all we care about is the sum.

The perimeter of a triangle is the sum of its three sides.

The perimeter of a triangle is the sum of its 3 sides

You cannot since there is not enough information.

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