Area and Perimeter of Irregular Figures

What is the formula for the circumference of a circle?

• C=2πr
• C=2πd
• C=πr²
• C=2πr²

Tags

CCSS.7.G.B.4

What is the formula for the area of a circle?

• A=2πr
• A=2πd
• A=πr²
• A=2πr²

Tags

CCSS.7.G.B.4

What is the formula for the area of a parallelogram?

• A=bh
• A=1/2 bh
• A=1/2 (b₁+b₂) h
• A=πr²

Tags

CCSS.6.G.A.1

What is the formula for the area of a trapezoid?

• A=bh
• A=1/2 bh
• A=1/2 (b₁+b₂) h
• A=πr²

Tags

CCSS.6.G.A.1

What is the formula for the area of a triangle?

• A=bh
• A=1/2 bh
• A=1/2 (b₁+b₂) h
• A=πr²

Tags

CCSS.6.G.A.1

What is the perimeter of the following figure? (round your answer to the nearest hundredth)

• 73.70 ft
• 54.85 ft
• 37.70 ft
• 18.85 ft

Tags

CCSS.3.MD.D.8

What is the area of the following figure? (round your answer to the nearest hundredth)

• 329.10 ft²
• 216 ft²
• 668.39 ft²
• 272.55 ft²

Tags

CCSS.6.G.A.1

The diagram gives the dimensions of a swimming pool. If a cover is needed for the pool, what will be the approximate area of the cover? (round to the nearest hundredth)

• 720 ft²
• 592.77 ft²
• 211.06 ft²
• 465.53 ft²

Tags

CCSS.6.G.A.1

What is the area of the composite figure?

• 40 sq cm
• 65 sq cm
• 52.5 sq cm
• 25 sq cm

Tags

CCSS.3.MD.C.7D

Jeff drew a circle inside a square, as shown below.  Which method can Jeff use to find the area of the square not covered by the circle?

• Subtract the area of the circle from the area of the square.
• Subtract the area of the square from the area of the circle.
• Subtract 1/4 the area of the square from the area of the circle.
• Subtract 1/4 the area of the circle from the area of the square.

Tags

CCSS.3.MD.C.7D