Formulas
Squares and Rectangles
Triangles, Kites, and Rhombuses
Parallelograms and Trapeziums
Circles
100
What is the formula for the area of a square?
A=s^2
100
Replace the blank in the statement below:
In a square, all sides are in length.
Equal
100
What does Perpendicular mean?
Two straight lines that meet at right angles.
Or a wall meeting the floor.
100
What is the formula for the area of a parallelogram?
A=bh
100
What is this called?
Radius
200
What is the formula for the area of a rectangle?
A=lb
200
In a rectangle, how many pairs of equal sides are there?
2
200
What are diagonals?
Lines that connect opposite corners.
200
What are parallel lines?
Two straight lines that never touch.
200
What is this called?
Diameter
300
What is the formula for the area of a triangle?
A=1/2bh
300
What do the lines on the sides of the square mean?
That the sides are the same length.
300
What is the area of this triangle?
A=1/2*b*h
A=1/2*5*9
A=22.5cm^2
300
Which length is the height?
8cm
300
What is the formula for the area of a circle?
A=pi*r^2
400
What is the formula for the area of kites and rhombuses?
A=1/2xy
400
What is the area of this rectangle?
A=l*b
A=1.1*4
A=4.4cm^2
400
What is the area of this rhombus?
A=1/2*x*y
A=1/2*6*8
A=24cm^2
400
What is the area of this parallelogram?
A=bh
A=8*14
A=112cm^2
400
What is the area of this circle? (2 decimal places)
A=pi*r^2
A=pi*5^2
A=78.54m^2
500
What is the formula for the area of a trapezium?
A=1/2*h*(a+b)
500
What is the area of a square with side lengths of 6m?
A=s^2
A=6^2
A=36m^2
500
What is the area of this kite?
A=1/2*x*y
A=1/2*25*16
A=200cm^2
500
What is the area of this trapezium?
A=1/2*h*(a+b)
A=1/2*3*(7+11)
A=27cm^2
500
What is the area of this circle? (2 decimal places)
A=pi*r^2
A=pi*2.7^2
A=22.90cm^2