Shapes
A shape with 4 equal sides and 4 equal angles
square (or rhombus)
Area of a Rectangle
Length x Width (base x height ok)
What is the diameter of a circle
A line that goes through the center and touches both edges
5 x 4 + 20 =
40
53
125
A 2D shape with no sides, no angles
Circle
Area of a triangle
1/2 base x height
or
base x height / 2
What is the radius of a circle
A line that comes from the center of a circle to one edge.
22 - 3 x 3 =
13
122
144
Triangle
Add the length of all sides
What is a polygon?
A many sided shape
(5 + 5) + 3 x 12 =
46
181
18
A 2D shape with 2 sets of equal sides and vertices (corners) that are all 900
Rectangle
Area of a circle (hint: pi)
Pi x r2
or
3.14 x r2
Give the definition of Area (in your own words)
The space taken up on the inside of a 2D shape
3.14 x 52 =
78.5
270
1
A generic name for a multi-sided shape (starts with a P)
Polygon
Volume of a rectangular prism (hint 3 things)
Length x width x height
Give the definition of Perimeter
The space around the outside of a 2D shape.
4 (5+8) / 2
26
65
6x6x6x6x6 = 7,776