Measurement in 2-Dimensions

If we rotate the triangle around the x-axis, what 3-D object is created?

• Sphere

• Cylinder

• Cone

• Cube

If we rotate the rectangle around the x-axis, what 3-D object is created?

• Sphere

• Cylinder

• Cone

• Cube

If we rotate the circle around the x-axis, what 3-D object is created?

• Sphere

• Cylinder

• Cone

• Torus

Population Density = Population / Land Area. The state of Nevada has a population of about 2.7 million people. Find the population density in people per square mile. Area of Nevada = 110,400 mi².

• 24 people per square mile.

• 12 people per square mile.

• 36 people per square mile.

• 48 people per square mile.

What is the shape of the cross-section parallel to the base?

What is the shape of the cross-section perpendicular to the base (through the vertex)?

What is the formula for the volume of a Triangular Prism?

• V = Bh

• V = 2πr²h

• V = lwh

• V = 1/3Bh

Calculate the volume of a Triangular Prism with base area 0.5(5.5)(5.5) and height 4.2.

• V = 63.53 ft³

• V = 45.21 ft³

• V = 31.90 ft³

• V = 52.25 ft³

What is the formula for the volume of a Rectangular Prism?

• V = Bh or V = (lw)h

• V = 2πr²h

• V = (1/3)Bh

• V = πr²h

Calculate the volume of a Rectangular Prism with length 3, width 2.5, and height 4.5.

• V = 30.38 m³

• V = 27.00 m³

• V = 33.75 m³

• V = 36.25 m³