Angles in a Polygon

Angles in a Polygon

Please have out your notes from yesterday!

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Total angles in a polygon

Remember- think about making triangles in your shape.

Multiple Choice

How many degrees are in a shape with 3 sides?

• 0

• 180

• 360

• 540

Multiple Choice

How many degrees are in a shape with 4 sides?

• 180

• 360

• 540

• 720

Multiple Choice

How many degrees are in a shape with 5 sides?

• 180

• 360

• 540

• 720

Multiple Choice

How many degrees are in a shape with 12 sides?

• 1440

• 1800

• 1620

• 1980

Multiple Choice

How many degrees are in a shape with 18 sides?

• 2520

• 2880

• 2700

• 3060

Multiple Choice

How many degrees are in a shape with 87 sides?

• 15660

• 15480

• 14940

• 15300

Missing angles in a polynomial

1. Decide how many degrees are in the shape
2. Write an equation to add up the degrees you do know
3. Subtract from what the total should be to find the missing angle

Multiple Choice

What is the measure of the missing angle?

• 30

• 10

• 65

• 80

Multiple Choice

What is the measure of the missing angle?

• 204

• 24

• 114

• 246

Multiple Choice

What is the measure of the missing angle?

• 60

• 300

• 120

• 100

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