Show:
Names of Polygons
Interior and Exterior Angles
Area of Triangles and Trapezoids
Area of Regular Polygons
EVERYTHING!
100
What is the name of a four sided polygon?
Quadrilateral
100
What is the sum of the exterior angles of a convex polygon?
360
100
Name the formula for finding area of a triangle.
A = 1/2 * b * h
100
Name the formula for finding the area of a regular polygon.
A = 1/2 * a * P
100
What is a polygon?
A shape with three or more straight sides that is enclosed.
200
What is the name of an eight sided polygon?
Octagon
200
What is the sum of the interior angles of a regular pentagon?
540
200
Name the formula for finding the area of a trapezoid.
A = 1/2 * h * (b + b)
200
Find the area of a regular quadrilateral with a side that measures 5 ft and an apothem that measures 8 ft.
80 square feet
200
How are polygons named?
By their number of sides.
300
What is the name of a five sided polygon?
Pentagon
300
Find the degree measure of one exterior angle of a regular decagon.
36
300
Find the area of a triangle with a base of 16 ft and a height of 4 ft.
32 square feet
300
Find the measure of a regular hexagon with a side that measures 1.5 inches and an apothem that measures 2 inches.
9 square feet
300
Describe the difference between a CONVEX and a CONCAVE polygon.
A convex polygon is circular in shape and a concave polygon caves in.
400
What is the name of a seven sided polygon?
Heptagon
400
Find the degree measure of one interior angle of a regular nonagon.
140
400
Find the area of a triangle with a base of 7.5 in and a height of 9 in.
33.75 square inches
400
Find the measure of a regular heptagon with a side that measures 18 mm and an apothem that measures 13 mm.
819 square mm
400
How many triangles are formed in any convex polygon?
There are two fewer triangles than the number of sides.
500
What is the name of a twelve sided polygon?
Dodecagon
500
Find the degree measure of one interior angle AND one exterior angle of a regular quadrilateral.
90
500
Find the area of a trapezoid with bases that measure 7 ft and 5 ft and a height of 6 ft.
36 square feet
500
Find the area of a regular dodecagon with a side that measure 1.8 yds and an apothem of 5.6 yards.
60.48 square yards
500
How many angles does each polygon have?
Polygons have the same number of angles as they do sides.