Fractions of a circle
A circle is cut into 2 pieces. 1 piece is shaded. What is the fractional measure of the shaded angle?
1/2
What is the measure of an angle that turns through 1/2 of a circle?
180*
Right angle
What is a figure called that is a part of a line and has endpoints at both sides?
Line Segment
A circle is cut into 3 equal pieces. 1 of them is shaded. What is the fractional measure of the shaded angle?
1/3
What is the measure of an angle that turns through 1/4 of a circle?
90*
An angle that is greater than 90 degrees (but less than 180 degrees)
Obtuse angle
What is the figure called that is a single spot/location in space and looks like a dot?
A point
A pizza is cut into 8 slices. Joey, Sam, and Pete each eat a slice. What is the fractional measure of the amount they ate?
3/8
What is the measure of an angle that turns through 1/6 of a circle?
60*
An angle that is less than 90*
Acute
What is the figure called that has only an endpoint on one side and an arrow on the other side?
Ray
A cake is cut into 12 slices. There are 10 children at the birthday party. What fractional measure will NOT be eaten?
2/12
What is the measure of a circle that turns through 1/8 of a circle?
45*
An angle that is exactly 180 degrees
Straight angle
What is the figure called that has arrows on both sides, showing that is would continue in both directions forever?
Line
A giant hamburger is cut into 10 slices. Marie eats 3 slices, Bob eats 1 slice, and Joe eats 2 slices. What is the fractional measure of what they ate altogether?
6/10
A circle has 4/9 shaded. What is the measure of the angle shaded?
160*
An angle that is over 180 degrees
Reflex Angle
What is the figure called that is when two lines are joined together or cross?
Angle