Surface Area of Pyramids

Surface Area of Pyramids

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Let's Warm-up!!

Multiple Choice

What do we call this object below?

• Net 
• Triangle
• Geometry
• y = mx + b

Multiple Choice

What 3D solid does this net create?

• Triangular Prism
• Triangular Pyramid
• Rectangular Pyramid
• Square Prism

Multiple Choice

How many faces are on a cube?

• 3

• 4

• 6

• 5

Multiple Choice

Name this figure.

• Square Pyramid
• Triangular Prisim
• Square Prisim
• Triangular Pyramid

Surface Area of Pyramids

Find the Surface Area

• Find the Area of the Base (Square or other polygon)

• Find the area of one of the Triangles

• Multiply the area of the triangle by the number of lateral faces

• Add up the area of the base and the lateral faces

Multiple Choice

What 3D solid does this net create?

• Triangular Pyramid
• Triangular Prism
• Square Pyramid
• Square Prism

Lateral Area

The lateral area are all the faces except the BASE!

Multiple Choice

Find the surface area of the regular pyramid.

• 20 m²

• 16 m²

• 24 m²

• 12 m²

Multiple Choice

What is the surface are if you were to wrap this square pyramid?

• 23 sq. meters
• 27 sq. meters
• 33 sq. meters
• 36 sq. meters

Multiple Choice

Find the surface area of the square pyramid.

• 429 sq. cm
• 389 sq. cm
• 441 sq.cm
• 377 sq. cm

Multiple Choice

What is the LATERAL surface area?

• 12 mm²

• 6 mm²

• 24 mm²

• 40 mm²

Multiple Choice

What is the LATERAL surface area?

• 20 ft²

• 10 ft²

• 40 ft²

• 65 ft²

Multiple Choice

What is the TOTAL surface area?

• 40 ft²

• 20 ft²

• 25 ft²

• 65 ft²

Multiple Choice

How do I find TOTAL surface area?

• Add all of the sides (triangles) together

• Add all of the bases (squares) together

• Add all of the sides (triangles) and the base (square) together

• Circle total on my paper

Multiple Choice

How do I find LATERAL surface area?

• Add all of the sides (triangles) together

• Add all of the sides (triangles) and the base (square) together

• Add the bases (squares) together

• Circle the word lateral on my paper

Poll

How do you feel about finding the Surface Area of Pyramids?

• 1- I do not feel confident...yet

• 2- I almost have it

• 3- I got it!

• 4- I can teach someone else