CIRCLES are FUN

what is the area of this semicircle ?
d = 8 cm 

• 100.48 cm²
• 80 cm²
• 200.96 cm²
• 25.12 cm²

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

What is the area of a circle with the diameter of 10cm ?

• 66 cm²

• 78.5 cm²

• 66.5 cm²

• 10 cm²

What is the diameter of this circle?

• 3.5 m

• 3.14 m

• 17.5 m

• 7 m

Juliette bought a semi-circle welcome mat to put in outside of her front door. The radius of the welcome mat is 2 feet. What is the area of the welcome mat?

(hint: Semi-circle is half circle)

• 12.56 square feet

• 6.28 square feet

• 6.28 square feet

• 3.14 square feet

What is the radius of this circle?

• 12cm
• 6cm
• 24cm
• 3cm

Tags

CCSS.7.G.B.4

What is a semicircle?

• It is a half of a circle

• Two circles

• One circle

What does area mean?

• the distance around a shape
• half the distance around a shape
• the amount of space outside a shape
• the amount of space inside a shape

Tags

CCSS.6.G.A.1

What is/are the formula(s) to find the area of a circle?

• πr²
• 2πr
• √π

Tags

CCSS.7.G.B.4

The pizza below has a diameter of 12 in. Ms. Vittonett will cut the pizza into 4 equal slices.

Determine the area of 2 slices of pizza.

• 113.04 in ²

• 56.53 in ²

• 28.26 in ²

• 308.16 in ²

Jesse used rope to stake a circular region in which to plant a garden. The diameter of the region is 20 inches.

What is the approximate area of half of the garden?

• 31.4 in²

• 314 in²

• 157 in²

• 628 in²