Exploring Interior & Exterior Angles of Convex Polygons

How many pieces are used in a tangram puzzle?

• 5 pieces

• 10 pieces

• 7 pieces

• 12 pieces

What is the formula for calculating the sum of interior angles of an n-sided polygon?

• 180(n-2)

• 180(n-3)

• 360(n-2)

• 360(n-3)

How many triangles are formed in a hexagon when all diagonals from one vertex are drawn?

• 3 triangles

• 6 triangles

• 4 triangles

• 5 triangles

What is the sum of interior angles of an 18-sided polygon?

• 3060 degrees

• 3600 degrees

• 2880 degrees

• 3240 degrees

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

• 144 degrees

• 165 degrees

• 150 degrees

• 160 degrees

What is the measure of each interior angle of a regular 24-sided polygon?

• 165 degrees

• 160 degrees

• 155 degrees

• 150 degrees

How many sides does a polygon have if one of its exterior angles measures 20 degrees?

• 20 sides

• 22 sides

• 24 sides

• 18 sides

What is the sum of all exterior angles of any polygon?

• 540 degrees

• 720 degrees

• 360 degrees

• 180 degrees

What is the measure of each exterior angle of a regular 30-gon?

• 12 degrees

• 18 degrees

• 10 degrees

• 15 degrees

What is the value of x in the figure where the sum of exterior angles equals 360 degrees?

• 40 degrees

• 45 degrees

• 50 degrees

• 55 degrees