What are two properties of REGULAR polygons?
All sides are equal, all angles are equal
What is the size of x?
45
What is triangle B called?
Equilateral triangle
What is the size of x?
44 degrees
What is the size of each angle in triangle B?
60
What is the size of c?
64 degrees
What is the size of c?
50 degrees
Why are these two angles equal?
Because they are vertically opposite
Which shape is the only REGULAR quadrilateral?
Square
What is the size of m?
31
What is the sum of x + y + z
180 degrees
What is the size of x?
110 degrees
What is the sum of the interior angles in this pentagon?
180 x 3 = 540 degrees
What is the size of angle z?
80 degrees
What is the size of angle f? and g?
f = 41, g = 139
What is the size of x?
106 degrees
Which shape is not a polygon? Why?
Circle - no straight sides
What is the size of m?
223 degrees
What is the size of each of the base angles in triangle E?
45 degrees
What is the size of angle a?
80
Jamal has drawn the first two sides of a regular polygon onto a clock face. How many sides will the completed polygon have?
6
How many irregular polygons are there inside the large square?
9
What is the size of x?
35