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Area of Circle
Area of Shapes
Circumference of Circle
Formulas
100

Find the radius of the circle if the diameter is 56cm

What is 28cm?

100
The area of a circle if the radius is 5in
What is 78.75^2?
100

Find the area of a rectangle with length of 7 inches and width of 9 inches

What is 63 in2?

100
The circumference of a circle if the diameter is 8cm
What is 25.12cm?
100

Find the formula of area circle.

What is pi(r)2 


200

Find the circumference of a circle with a diameter of 11mm.

What is 34.54mm?

200

Find the area of a circle if the radius is 19cm.

What is 1133.54cm^2?

200

Find the area of a square with a side length of 13 feet.

What is 169 feet2?

200
Find the circumference of a 12in pizza.
What is 37.68in?
200

Find the formula for a triangle

What is bh/2?

300

Find the radius if the diameter is 75.5in.

What is 37.75in?

300
Find the area of a circle if the diameter is 42mm.
What is 1384.74mm^2?
300

Find the area of a triangle with a base of 12 cm and a height of 5 cm.

What is 30 cm2?

300
Find the circumference of a circle with the radius of 23mm.
What is 144.44mm?
300

Find the formula for circumference

What is 2pi(r) or pi(d)?

400

Find the area of a circle if the radius is 10in.

What is 314?

400
Find the area of a circle if the radius is 57in.
What is 357.96in^2?
400

Find the area of a parallelogram with a base of 22 mm and height of 14 mm

What is 308 mm2?

400
Find the circumference of a circle if the diameter is 314.2cm.
What is 986.588cm?
400

Find the formula for a semi-circle.

What is pi(r)2 divided by 2

500

Find the diameter of a circle if the circumference is 21.98cm.

What is 7cm?

500
Find the radius of a circle with an area of 200.96 square feet.
What is 8 square feet?
500

Find the area of a trapezoid with a base of 4 feet another base of 7 feet and a height of 3 feet.

What is 22 feet2?

500
Find the diameter of a wheel on a truck if the distance around it is 9.42ft.
What is 3ft?
500

Find the formula for a trapezoid.

What is (b1 + b2)h/2?

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