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Using Midpoint and Distance Formulas

Using Midpoint and Distance Formulas 1.12 - Solution

arrow_back Return to Using Midpoint and Distance Formulas

Let's calculate the length of each side with the distance formula to find the perimeter.

Length

Substitute the coordinates and into the distance formula.
The side AB has the length cm.

Length

Insert the coordinates and into the distance formula.
The side BC is cm.

Length

Evaluate the length of the side between the coordinates and
Evaluate right-hand side
The side is cm.

Perimeter

Finally, we calculate the perimeter by adding the three side lengths together.
The triangle's perimeter is approximately units.