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Surface Area of Pyramids. Return to table of contents. Surface Area of Pyramids. What is a pyramid? Polyhedron with one base and triangular faces that meet at a vertex How do you find Surface Area? Sum of the areas of all the surfaces of a 3-D Figure. click to reveal. click to reveal. - PowerPoint PPT Presentation

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Page 1: Surface Area of Pyramids

Surface Area of Pyramids

Return to table of contents

Page 2: Surface Area of Pyramids

Surface Area of Pyramids

What is a pyramid?

Polyhedron with one base and triangular faces that meet at a vertex

How do you find Surface Area?

Sum of the areas of all the surfaces of a 3-D Figureclick to reveal

click to reveal

Page 3: Surface Area of Pyramids

8 cm

7 cm

17.5 cm

Find the Surface Area.

go on to see steps

Page 4: Surface Area of Pyramids

Find the Surface Area.

8 cm

7 cm

17.5 cm

8 cm

17.5 cm

7 cm

17.5 cm

7 cm

Bottom Rectangle 8 x 7 56

Front/Back Triangles

Left/RightTriangles

Surface Area 56 140+ 122.5 318.5 cm2

8 cm

Page 5: Surface Area of Pyramids

Find the surface area of a square pyramid with base edge of 4 inches and triangle height of 3 inches.

4 in

3 inBase 4x 4 16

4 Triangles Surface Area 16+ 24

40 in2

click to reveal click to reveal click to reveal

Page 6: Surface Area of Pyramids

Find the surface area.

Be sure to look at the base to see if it is an equilateral or isosceles triangle (making all or two of the side triangles equivalent!).Base

Triangles(all equal)

Surface Area 7+ 36

43 in2

4 in4 in

4 in

6 in

3.5 in

click to reveal

click to reveal

click to reveal

Page 7: Surface Area of Pyramids

42 Which has a greater Surface Area, a square pyramid with a base edge of 8 in and a height of 4 in or a cube with an edge of 5 in?

A Square PyramidB Cube

Page 8: Surface Area of Pyramids

43 Find the Surface Area of a triangular pyramid with base edges of 8 in, base height of 4 in and a slant height of 10 in.

8 in8 in

8 in

10 in

6.9 in

Page 9: Surface Area of Pyramids

44 Find the Surface Area.

9 m9 m

12 m

11 m

6.7 m


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