Circles, circumference and area

What is this symbol? 𝝅

• circumference

• cake

• pi

• radius

What is pi?

• 3.41

• 3.14

• 3.34

• 4.14

What is number 1?

• Radius

• Diameter

• Circumference

• Perimeter

What is number 2?

• Radius

• Diameter

• Circumference

• Perimeter

What is number 3?

• Radius

• Diameter

• Circumference

• Perimeter

Select the formulas to find the circumference?

• C = d𝝅

• C = r𝝅

• C = d x 𝝅

• C = r² x 𝝅

Select the formulas to find the area of a circle

• A = r x 𝝅

• A = 𝝅 x r²

• A = d² x r

• A = 𝝅r²

What is the circumference?

• 21.98 m

• 43.96 m

• 43.96 cm

• 21.98 cm

What is the area of this circle?

• 153.86 cm²

• 153.86 cm

• 615.44 cm

• 615.44 cm²

Did you learn much from the lesson today?

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