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°A pentagon is a two-dimensional five sided polygon. You can have pentagons with sides that are all the same length or you can have pentagons with sides that are all different.
Regardless of the type of pentagon you have, to find the sum of its interior angles of any pentagon, follow these steps.
Step 1:Use the Formula for the Sum of Interior Angles
You are going to use the formula to find the sum of interior angles of any shape. Here it is:
sum of interior angles
In this formula, the n stands for the number of sides of your shape. For your pentagon, it is a 5.
Step 2: Plug in 5 for n
Since your pentagon has five sides, you will plug in 5 for the variable n in the above equation.
sum of interior angles
Step 3: Solve
Your final step is to solve your formula. The formula tells you to subtract 2 from the number of sides of your shape. For your pentagon, this leaves you with 3. Then you are to multiply by 180 degrees.
