Learning Area of Regular Polygon Video introduction and Examples

"a" in the formula stands for what?

"n" in the equation stands for what?

What defines a regular polygon?

• Only the sides are equal

• None of the above

• All sides and angles are equal

• Only the angles are equal

How do you find the measure of a central angle in a regular polygon?

• Divide 180 by the number of sides

• Multiply the number of sides by 360

• Divide 360 by the number of sides

• Add up all the interior angles and divide by the number of sides

True or False: the Apothem always bisects your side and your angle.

• True

• False

What is the formula for the area of a triangle?

• Base divided by height

• One half base times height

• Base times height

• Base plus height

What does the apothem represent in a regular polygon?

• The longest side of the polygon

• The distance from the center to a vertex

• The perimeter of the polygon

• The perpendicular distance from the center to a side

How is the side length of a square inscribed in a circle with radius 8 cm found?

• 8 minus the square root of 2

• 8 plus the square root of 2

• 8 times the square root of 2

• 8 divided by the square root of 2

What trigonometric function is used to find the side length in a regular pentagon problem?

• Cosine

• Sine

• Cotangent

• Tangent

How do you find the apothem of a regular decagon with a perimeter of 100 mm?

• Multiply the perimeter by the tangent of 18 degrees

• Divide 5 by the tangent of 18 degrees

• Divide the perimeter by 10

• Multiply 5 by the tangent of 18 degrees