Know The Formula
Find the Area
Find the Circumference
SemiCircles
Random
100
Radius is the same as _____ of the Diameter
1/2
100
A Circle with a radius of 5cm
78.5 cm^2
100
A Circle with a diameter of 5cm
15.7 cm
100
Find the Area
39.25 cm^2
100
The Area of a Circle with a 10 mile radius
314 mi^2
200
The area of a circle
pi*r ^2
200
A circle with a radius of 7.5 ft
176.625 ft^2
200
A circle with a diameter of 7.5 ft
23.55 ft
200
Find the Perimeter
25.7 cm
200
What is a Unit Rate?
The Rate for ONE unit
300
The Circumference of a Circle
2*pi*r or pi*d
300
A Circle with a diameter of 20 mi
314 mi^2
300
A Circle with a radius of 20 mi
125.6 mi
300
Find the Area
76.93 cm^2
300
When finding the area of multiple shapes. What is something that you can do?
Find the area of each shape and add them together.
400
The Area of a SemiCircle
(pi*r^2)/2
400
A Circle with a diameter of 25 mm
490.625 mm^2
400
A Circle with a radius of 25.75 mm
161.71 mm
400
Find the Perimeter
35.98 cm
400
To find the area of a shaded region, you can find the area of the entire shape and then what?
Subtract what you know to leave only the shaded region.
500
The Perimeter of a SemiCircle
(((2*pi*r)/2)+d) or(( (pi*d)/2)+d) or ((pi*r)+d)
500
A SemiCircle with a Diameter of 77 steps
2327.1325 steps^2
500
A SemiCircle with a radius of 41 ft
210.74 ft
500
Find the Perimeter and Area
P=18.504m and A=20.3472 m^2
500
The Area of the Shaded Region
200.96 cm^2