Area of Rectangles, Triangles and Circles

Calculate the area of this shape

• 84cm²

• 84cm

• 38cm

• 38cm²

Calculate the area of this shape

• 345cm²

• 76cm²

• 38cm²

• 175cm²

What is the radius of this circle?

• 12

• 6

• 24

A school’s art teacher designs a circular flower bed inside a rectangular sandbox. The sandbox is 6 feet wide and 10 feet long. How many square feet of sand will there be after the flower bed is installed? Use for 3.14 for π. Round the answer to the nearest square foot.

• 22 square feet

• 28 square feet

• 32 square feet

• 41 square feet

Tags

7.G.4

What is the Area Formula for a Circle?

• A = $\pi$ * r * r

• A = $\pi$ * d

• A = 2 * $\pi$ * r

A school’s art teacher designs a circular flower bed inside a rectangular sandbox. The sandbox is 6 feet wide and 10 feet long. How many square feet of sand will there be after the flower bed is installed? Use for 3.14 for π Round the answer to the nearest square foot.

• 22 square feet

• 28 square feet

• 32 square feet

• 41 square feet

Tags

7.G.4

CHOOSE THE EQUATION THAT YOU WOULD USE TO SOLVE:

Find the area of circle F.

• 
• 
• 
• 

Find the area of the quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00

What is the area of this circle?

• 1384.74

• 2142.12

• 5541.77

• 1289.12

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

• πr²

• 2πr

• √π