A regular polygon has 21 sides. Find the size of each interior angle?
The sum of the interior angles of a regular polygon are given by:
Each angle is therefore:
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The size of each interior angle of a regular polygon with 21 sides is 162 degrees.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- The interior angles of a hexagon are #x+2, x-8, x +7, x -3, x+6, and x -4#. What is the value of #x#?
- Are all right angles congruent?
- A regular hexagon and a regular octagon share a side. What is the measure of x, the angle between a side of the hexagon and a side of the octagon?
- An obtuse angled triangle has two of its sides #9# and #13#. What is the range for the third side?
- The sum of the interior angles of a polygon is 4860 degrees. How many sides does the polygon have?

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