Vocabulary
A line segment that passes through the center of a circle
Diameter, Radius, Parallel, Perpendicular, Quadrilateral
diameter
If the diameter of a circle is 6, what is the radius?
3
Is it a triangle if it has side lengths of 2 in, 3 in, and 4 inches?
yes or no
yes
2 + 3 > 4
What angle measurement is a straight line?
180 degrees
A line segment with one end point at the center of the circle and the other at one end (half of diameter)
Diameter, Radius, Parallel, Perpendicular, Quadrilateral
Radius
If the diameter of a circle is 19, what is the radius?
38
Is it a triangle if it has side lengths of 6 in, 3 in, and 9 inches?
yes or no
No,
6 + 3 is not > 9
What is a triangles angles equal to?
180 degrees
Lines that do not intersect
Diameter, Radius, Parallel, Perpendicular, Quadrilateral
parallel
If the radius is 12, what is the diameter?
24
What is the missing angle?
80 degrees, 75 degrees, and _____
25 degrees
If a pie chart has angle measures of 40, 50, 85, 90, 50, what is the last angle equal to?
PIE chart is a circle, think of a total amount of degrees in a circle
45 degrees
Two lines that intersect to make a 90 degree angle
Diameter, Radius, Parallel, Perpendicular, Quadrilateral
Perpendicular
If a square has a side length of 20 inches. What is the radius of a circle inside of this square?
10
What is the missing angle?
45 degrees, 45 degrees, _____
90 degrees
Solve for x.
2x + 9 + 7x = 90
x = 9
A 4 sided polygon
Diameter, Radius, Parallel, Perpendicular, Quadrilateral
Quadrilateral
If a square has a side length of 3 inches. What is the diameter of a circle inside of this square?
3 inches
What is the missing angle?
130 degrees, 25 degrees, _____
25 degrees
Solve for x.
6x - 4 = 68
x = 12