Triangle Rules
Circle Basics
Area and Circumference
Complex Shapes
Unique Triangles
100
The sum of the interior angles of any triangle is always this many degrees.
180
100
This is the distance from the center of a circle to any point on its edge
Radius
100
Find the circumference of a circle with a diameter of 10 cm
31.4 cm
100
If you are given three side lengths that satisfy the triangle inequality, how many unique triangles can you draw?
One
200
According to the Triangle Inequality Theorem, the sum of the lengths of any two sides must be ______ than the length of the third side.
Greater
200
This is the distance across a circle through its center
Diameter
200
Find the area of a circle with a radius of 5 m
78.5 m
200
If you are given three angle measurements (30, 60, or 90), can you draw more than one triangle?
Yes
300
Can a triangle be formed with side lengths of 3 cm 4 cm, and 8 cm?
No
300
If the radius of a circle is 7.5 inches, what is its diameter?
15 inches
300
If a circle has a circumference of 37.68 , what is its radius
6
300
You are given two sides of 5 cm and 10 cm and an included angle of 45 degrees. Does this produce a unique triangle?
Yes
400
If a triangle has two angles measuring 40 degrees and 60 degrees , what is the measure of the third angle?
80 degrees
400
This mathematical constant represents the ratio of a circle's circumference to its diameter.
pi
400
A circular rug has a diameter of 8 feet. What is the area of the rug?
16 pi or 50.24
400
112
500
True or False: A triangle can have two right angles
False
500
What is the formula to find the circumference of a circle
2piR
500
40