Regular Polygons
A regular polygon has sides that are all the same ________.
length
True or False: An irregular polygon has sides that are not all equal.
True
The perimeter is the total _______ around a shape.
Distance
A cube’s net is made of how many squares?
6
Is every square a polygon?
Yes
Is a square a regular polygon?
Yes, all sides and angles are equal.
Is a rectangle a regular or irregular polygon?
Irregular (only opposite sides equal)
Find the perimeter of a rectangle: L = 4 cm, W = 3 cm.
14 cm
What 3D shape has a net that includes rectangles AND circles?
Cylinder
A polygon has 10 sides. What is it called?
Decagon
How many sides does a regular hexagon have?
6
A shape has sides 3 cm, 5 cm, 6 cm, and 4 cm. Is it regular or irregular?
Irregular
A triangle has sides 5 cm, 7 cm, 8 cm. Find the perimeter.
20 cm
A triangular pyramid is also called a ________.
Tetrahedron
Which has a larger perimeter:
A square with sides 6 cm OR a rectangle 4 cm × 8 cm?
Square = 24 cm
Rectangle = 24 cm
Tie
Name a regular polygon with 8 equal sides and angles.
Octagon
Name an irregular quadrilateral.
Trapezoid, kite, etc.
A regular hexagon has side length 9 cm. Find the perimeter.
54 cm
Which shape’s net has 1 rectangle and 2 triangles?
Triangular prism
Name two 3D solids that have nets including only rectangles.
Cube (if square is allowed), rectangular prism
If each side of a regular pentagon is 5 cm, what is its perimeter?
25 cm
Explain why a triangle with sides 3 cm, 3 cm, and 5 cm is irregular.
Only two sides are equal, not all three.
A garden is shaped like an irregular pentagon with sides:
4 m, 6 m, 5 m, 3 m, 2 m.
Find the perimeter.
20 m
A net has 6 rectangles. What 3D shape could it fold into?
Rectangular prism
A regular octagon has a perimeter of 72 cm. What is one side length?
9 cm