Angles
A point where two or more lines meet.
What is the Vertex?
180 degrees
What is a Straight Line?
The distance AROUND a circle.
What is Circumference?
What is the formula for Perimeter of a Triangle?
A small angle. Less that 90 degrees.
What is an Acute Angle?
46 degrees
What is an Acute Triangle?
Any line segment that connects the CENTER to a point on the circle. (Half line)
What is the Radius?
b x a/2
What is the formula for Area of a Right Triangle?
A BIG angle, between 90 and 180 degrees.
What is an Obtuse angle?
167 degrees
What is an Obtuse Angle?
Any line segment through the center that connects TWO points on a circle. (straight line through the whole circle)
What is the Diameter?
What is Area of a Circle?
Angle that is EXACTLY 180 degrees.
What is a Straight line?
90 degrees
What is a Right angle?
A line segment that connects any two point on a circle.
What is a Chord?
2 x 3.14 x r2
What is Circumference of a circle?
1/2 x base x Height
What is the Area of a Common Triangle?
24 degrees
What is an Acute angle?
Using your calculator, what is the area of a circle if the Radius is 5 inches?
78.5 sq. in.
50.24 ft.