Formulas
Perimeter
Area 1
Area 2
Circumference
100
What is the formula (song) for perimeter?
You add up all the sides!
100
Shape: square s = 3.2 cm
P = 12.8 cm
100
Shape: square s = 4.7 m
A = 22.09 sq m
100
Shape: rectangle l = 3.2 cm w = 11.01 cm
A = 35.232 sq cm
100
pi = 3.14 d = 9 inches
C = 28.26 inches
200
What is the formula for area of a square or rectangle?
A = l x w
200
Shape: rectangle l = 12 m w = 6 m
P = 36 m
200
Shape: rectangle l = 11 cm w= 7 cm
A = 77 sq cm
200
Shape: square s = 3.5 m
A = 12.25 sq m
200
pi = 3.14 d = 14 cm
C = 43.96 cm
300
What is the formula for area of a parallelogram?
A = b x h
300
Shape: triangle side 1 = 2.3 in side 2 = 3.1 in side 3 = 2 in
P = 7.4 in
300
Shape: parallelogram b = 9.1 cm h = 8 cm
A = 72.8 sq cm
300
shape: triangle b = 2.4 in h = 12 in
A = 14.4 sq in
300
pi = 3.14 r= 5 mi
C = 31.4 miles
400
What is the formula for area of a triangle?
A = (b x h) / 2 base times height divided by 2
400
Shape: regular pentagon s = 9 mm
P = 45 mm
400
Shape: triangle b = 7 in h = 6 in
A = 21 sq in
400
shape: triangle b = 13 km h = 4 km
A = 26 sq km
400
diameter = 32 m FIND THE RADIUS.
r= 16 m
500
What is the formula for circumference?
C = 3.14 x d
500
Shape: parallelogram l = 2.5 in w= 3.6 in
P = 12.2 in
500
Shape: parallelogram b = 5.6 mm h = 3 mm
A = 16.8 sq mm
500
shape: parallelogram b = 6.4 m h = 4 m
A = 25.6 sq m
500
radius = 15 mm FIND THE DIAMETER.
d= 30 mm
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