Unit 8 Review

Area of a rectangle.

• A=Bh
• A=bh
• A=½bh
• A=½(b₁+b₂)h

Area of a triangle.

• A=Bh
• A=bh
• A=½bh
• A=½(b₁+b₂)h

What is the formula for circumference of a circle given the radius?

• C = πr
• C = 2πr
• C = πd
• C = πr²

What is the formula for circumference of a circle given the diameter?

• C = π(1/2 d)²
• C = 2πr
• C = πd
• C = πr²

Area of a trapezoid.

• A=Bh
• A=bh
• A=½bh
• A=½(b₁+b₂)h

Area of a circle.

• A=πr²
• A=2πr

What is the radius of this circle?

• 18
• 36
• 9
• 6

The diameter of Carol's old records from the 80s is 12 inches. Which equation would help you determine the area?

• A = 12π
• A = 2π12
• A = π(12²)
• A = π(6²)

 A rectangular prism has a length of 11.8 meters, a width of 4 meters, and a height of 5 meters. What is the volume of the prism?

• 2360 m³
• 23.6 m
• 23.6 m³
• 236 m³

Calculate the area of the figure. 

• 126 ft²
• 39 ft²
• 156 ft²
• 80 ft²