Q: How do you work out the perimeter of a triangle in algebra?

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By adding the three sides.

Add up the sides.

-- 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.

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

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

ask your maths teacher

By adding the three sides.

-- Make sure you have the lengths of all three sides -- Add up the lengths of all three sides to get the perimeter of the triangle.

Add up the sides.

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

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

-- 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.

There is no reason for the perimeter of a triangle to have any relation to the perimeter of an unrelated rectangle!

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

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

Add up the length of all sides