Circles
What is the term for the distance from the outside of the circle to it's center ?
What is the formula for Circumference of a Circle ?
C = pi times diameter
When two angles are equal to each other, they are called
Congruent
Given a right angle, if one angle is 20 degrees, the other angle will be
70 degrees
What is the formula for Area of a Circle ?
A = pi times radius squared
What is the term for the distance from the outside of the circle, thru the center, to the other side.
diameter
Find Circumference when diameter is - 25
78.5
When two angles add up to 90 degrees, they are called
complementary
Two angles make up a straight line. If one angle is 80 degrees, what is the other angle?
100 degrees
What is the area of a circle with a radius of 5?
78.54
If the radius is 30 the diameter is?
60
When two angles that add up to 180 degrees, they are called
supplementary
If one angle is 10 degrees, what is the measure of it's complement ?
80 degrees
What is the area of a circle with a radius of 10?
314
If the diameter is 50 the radius is ?
25
If the circumference of a circle is 314, what is the diameter of the circle ?
100
Vertical Angles
If one angle is 30 degrees, what is the measure of it's supplement ?
150 degrees
What is the area of a circle with a diameter of 22?
379.94
How many degrees are there in a circle ?
360
If the Circumference of a circle is 75.36, what is the Radius of the circle ?
12
Two angles that are next to each other and share a common side
Adjacent Angles
Put these in order of smallest to largest in terms of angle measures:
Right, Obtuse, Acute
Acute Right Obtuse
What is the area of a circle with a diameter of 100?
7,850