Angles
This angle's measure is less than 90 degrees.
Acute Angle
The shape has 3 sides
Triangle
Area formula for a rectangle
base x height;
length x width
This is like a bike spoke
radius
Only works for these types of triangles
Right
This angle's measure is greater than 90 degrees
Obtuse
Shaped like a lunch tray
Rectangle
Area formula for a parallelogram
base x height;
length x width
A segment that goes through the center of the circle from side to side of a circle
Diameter
Is the hypotenuse or slanted side the longest side of a right triangle?
yes
This angle's measure is 90 degrees
Right
A lot of these on a checkerboard
Square
Area formula for a square
base x height; length x width;
side squared; side times side
The distance around a cirlce
Circumference
The official name of the shorter sides of a right triangle
Legs
This angle's measure is 180 degrees
Straight
The gray desks in the math room with a shorter top than bottom and slanted sides.
Trapezoid
Area formula for a triangle
base x height divided by 2;
length x width divided by 2;
1/2 base time height;
base times height divided by 2
The amount of covering for a circle
Area
Do we add or subtract the squares to get the slanted side?
Add
These opposite angles are equal and formed by the intersection of lines.
Vertical
A slanted rectangle or square.
Parallelogram
Area formula of a circle
pi times radius square
Number of radiuses that equal a diameter?
2
Do we add or subtract the squares to get a short side?
Subtract