Unit 3 test CRM

Find the number of bricks required to cover a floor of area 937.5 cm² , if the area of each brick is 9.375 cm²

• 10 bricks

• 100 bricks

• 1000 bricks

• 10000 bricks

In a cylinder, radius is doubled and height is halved, then the curved surface area will be____

• halved
• doubled
• same
• will increase four times

If the volume of a cube is 125 cm³, find its edge

• 25 cm
• 5 cm
• 15 cm
• None of the above

Daniel builds a concrete patio that is 6 in thick, 12 ft. wide, and 20 ft. long.  The premix concrete cost $2 per cubic foot.  How much did the concrete cost?

• $120
• $240
• $480

Faron wants to paint the four walls in his bedroom. The room measures 12 ft long, 10 ft wide and 8 ft high. There are two doors that each measure 3 ft by 7 ft and a window that measures 3 ft by 4 ft. If Faron does not paint the doors and window, what is the total area he will paint?

• 352 ft^2

• 298 ft^2

• 122 ft^2

• 66 ft^2

A shape is composed of a square and a triangle. The dimensions, in feet (ft), are shown below.Which is the area of the shape in square feet (sq ft)?

• 19
• 20
• 22
• 28

A triangular prism is shown below.What is the volume of the triangular prism?

• 240 in cubed
• 360 in cubed
• 720 in cubed

A pyramid has a square base. Each side of the base is 9 cm. The slant height of each triangle is 14 cm. What is the surface area?

• 126 cm²
• 144 cm²
• 252 cm²
• 333 cm²

What is surface area?  Round to the nearest hundredth

• 1339.73
• 1003.36
• 320.78
• 742.04

What is the volume of the figure?

• V = 1800 mm³
• V = 600 mm³
• V = 900 mm³
• V = 1200 mm³