Formulas
Calculate
Area
Perimeter
Circles
100
What is the formula for area of a triangle?
A = 1/2bh or A = bh/2
100
Find the area of the rectangle to the nearest 2 d.p
36.54 ft2
100
Find the area of the parallelogram with a base of 10m and a height of 12m
120m2
100
What is perimeter?
Perimeter is the outside edge of a shape
100
What is radius?
Radius is half the diameter.
The distance from the middle point of a circle
200
What is the Area formula for a rectangle?
A = L x W
200
Find the area of the triangle.
21 in2
200
What is the area of a triangle if the base is 3.5 cm and the height is 7 cm? round to the hundredths place.
A = 12.25 cm2
200
Calculate the perimeter of the shape below:
20
200
What is diameter?
The distance across the whole circle.
300
Area of a Parallelogram
A = b x h
300
Find the area of the parallelogram with a base of 13.5m and a height of 12.5m
168.75m2
300
What is the area of this triangle to the nearest hundredths place if necessary.
A = 10.15 ft2
300
calculate the perimeter of this shape:
51m
300
What is circumference?
What is area?
The distance around the outside edge of a circle.
The space inside the circle
400
what is the formula for area of a square?
a=s2
or
a=bh
400
What is the area of a triangle if the base is 5 cm and the height is 10 cm?
A = 25 cm2
400
What is the area of a triangle with a base of 15 cm and h = 8 cm?
What is 60cm2
400
calculate the perimeter of the shape below:
36 cm
400
What is the formula for circumference?
c=πD
or
c=2πr
500
What is the formula for area of a circle?
a=πr2
500
find the area of the trapezoid shown.
1,560 ft2
500
A parallelogram has a base length of 15 meters, a height of 7 meters, and a slant height of 10 meters.
Calculate the area of the shape.
105 m2
500
What is the perimeter of this shape:
40
500
Calculate the area:
what is 113.04 cm2
1000
How to find the area of a trapezoid?
A = 1/2h(b1 +b2)
1000
What is the area of this trapezoid?
A = 42 m2
1000
What is the area of a trapezoid whose b1 = 9 in., b2 = 5 in. and h = 6 in.?
What is 42in2
1000
Find the perimeter:
32m
1000
calculate the area of the circle below:
153.86cm2