Composite shapes video

What is a composite shape?

• A shape made up of two or more shapes put together

• A shape with a composite texture

• A shape that changes form over time

• A shape made from composite materials

When calculating the surface area of a new composite shape, what must you subtract?

• The perimeter of the base of the new shape

• The area where the two shapes touch, multiplied by two

• The height of the new shape

• The volume of the smaller shape

What is the formula for the volume of a prism?

• Perimeter of the base times the height

• Length times width times height

• Area of the base times the height

• 2 times the area of the base plus the perimeter of the base times the height

How do you calculate the surface area of a prism?

• Length plus width plus height

• Area of the base times the height

• Perimeter of the base times the height plus 2 times the area of the base

• Length times width

What shapes make up the composite shape discussed in the lesson?

• A square prism and a circular prism

• A hexagonal prism and a pentagonal prism

• Two cylindrical shapes

• A triangular prism and a rectangular prism

What is the perimeter of the base of the triangular prism mentioned?

• 64 centimeters

• 17 centimeters

• 30 centimeters

• 34 centimeters

What is the area where the two prisms touch in the composite shape?

• 720 square centimeters

• 1440 square centimeters

• 30 square centimeters

• 120 square centimeters

What is the total volume of the composite shape?

• 15,840 cubic centimeters

• 2,880 cubic centimeters

• 3,720 cubic centimeters

• 12,960 cubic centimeters

What is the total surface area of the composite shape after subtracting the area where they touch?

• 3,384 square centimeters

• 1,440 square centimeters

• 1,776 square centimeters

• 3,720 square centimeters

Why do you not need to paint the bottom of the triangular prism and the top of the rectangular prism in the composite shape?

• Because they are inside the composite shape and not visible

• Because they do not exist in a composite shape

• Because they are made of a material that does not require painting

• Because they are covered by the other shape