Surface Area Lateral Total

Find the surface area of the following triangular pyramid.
Each triangle is congruent, with a base of 7 ft. and a height of 6ft.

• 168 ft²

• 126 ft²

• 84 ft²

• 42 ft²

Is surface area.......

• Filling in a 3 dimensional shape

• wrapping the outside of a 3 dimensional shape

How do you find the surface area of a 3 dimensional shape?

• Find the area of all the faces and add them together.

• Add all the faces

• Add the bases

• Multiply the dimensions together.

How many square inches of cardboard make up this pyramid?

• 24 in²

• 40 in²

• 44 in²

What is lateral surface area?

• The area of all of the sides (including bases or top and bottom).

• The area of only the sides (not including the bases or top and bottom).

• The perimeter of the base.

• The area of the base.

What is total surface area?

• The area of all of the sides (including bases or top and bottom).

• The area of only the sides (not including the bases or top and bottom).

• The perimeter of the base.

• The area of the base.

What is the difference between lateral and total surface area?

• Total surface area solves for perimeter of all the sides where lateral solves for area.

• Total surface area is the sum of the area of all the sides where lateral surface area is the sum of the area of only the sides. (Not including the bases or top and bottom).

• Total surface area can only be used for prisms and lateral surface area can only be used for cylinders and cones.

• None of the above.

_{Find the Lateral Surface area of a cylinder where my radius is 7 cm and my height is 20 cm.}

• 3077.2

• 879.2

• 1186.92

• 2(3.14)(7)(20)+2(3.14)(7)

Find the Total Surface area of a cylinder where my radius is 7 cm and my height is 20 cm.

• 3077.2

• 879.2

• 1186.92

• 2(3.14)(7)(20)+2(3.14)(7)

Find the Lateral Surface Area of a Triangular Prism. 

• 72

• 65

• 84

• 18