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Vocabulary
Name That Equation
Find The Perimeter or Circumference
Find The Area
What Do These Letters Stand for?
100
The sum of the lengths of a shape's sides
What is perimeter?
100
P=4s
What is the equation for the perimeter of a square
100
Find the perimeter of the square I draw on the board.
12 cm
100
Find the area of the square I draw on the board.
9 cm²
100
Any side of a square
What is "s"?
200
The perimeter of a circle
What is circumference?
200
A=bh
What is the equation for the area of a rectangle?
200
Find the perimeter of the rectangle I draw on the board.
26 cm
200
Find the area of the rectangle I draw on the board.
40 cm²
200
The height of a rectangle or triangle
What is "h"
300
The number of square units (cm², in², m², etc.) enclosed in a shape. In other words, the size of the surface of a shape.
What is area?
300
A=s²
What is the equation for the area of a square?
300
Find the perimeter of the triangle I draw on the board.
43 in
300
Find the area of the triangle I draw on the board.
30 in²
300
The base of a rectangle or triangle.
What is "b"?
400
The straight line from the center to the circumference of a circle.
What is radius?
400
C=πd or C=2πr
What are the equations for the circumference of a circle?
400
Find the circumference of the circle I draw on the board.
75.36 cm or 24π cm
400
Find the area of the circle I draw on the board.
452.16 cm² or 144π cm²
400
The diameter and radius of a circle.
What are "d" and "r"?
500
A straight line segment that passes through the center of a circle.
What is diameter?
500
A=πr²
What is the equation for the area of a circle?
500
Find the circumference of the circle I draw on the board.
21.98 ft or 7π ft
500
Find the area of the circle I draw on the board.
28.26 ft² or 9π ft²
500
The three sides of a triangle.
What are "a", "b" and "c"?