Understanding Polygons and Their Properties

This video tutorial explains the concept of polygons, focusing on common types such as triangles, quadrilaterals, pentagons, hexagons, and octagons. It provides a detailed method to calculate the sum of interior angles for regular polygons using the formula (N-2) * 180, where N is the number of sides. The video demonstrates this calculation for a pentagon and a hexagon, showing how to find the measure of each interior angle by dividing the total sum by the number of sides.

What is a polygon with three sides called?

• Pentagon

• Hexagon

• Triangle

• Quadrilateral

Tags

CCSS.5.G.B.4

Which polygon is known as a regular quadrilateral?

• Trapezoid

• Rectangle

• Square

• Rhombus

Tags

CCSS.2.G.A.1

How many sides does a pentagon have?

• Four

• Five

• Three

• Six

What is the formula to find the sum of interior angles in a polygon?

• N * 180

• (N - 2) * 180

• N + 180

• (N + 2) * 180

What is the sum of all interior angles in a pentagon?

• 540°

• 360°

• 900°

• 720°

How do you calculate the measure of each interior angle in a regular pentagon?

• Divide 720° by 5

• Divide 360° by 5

• Divide 540° by 5

• Divide 540° by 4

What is the measure of each interior angle in a regular pentagon?

• 135°

• 108°

• 120°

• 90°

Tags

CCSS.2.G.A.1

How many sides does a hexagon have?

• Seven

• Six

• Five

• Four

What is the sum of all interior angles in a hexagon?

• 360°

• 540°

• 720°

• 900°

What is the measure of each interior angle in a regular hexagon?

• 90°

• 135°

• 120°

• 108°