Surface Area of Pyramids and

Cones

Surface Area of Pyramids and ConesPyramid

Cones

Has a square base and comes to a point

Has a circle base and comes to a point

Surface Area of Pyramids and ConesLateral Surface

Slant Height

Sides that are not the base

Lateral face height which is different than the height of the 3-D shape.

Surface Area of Pyramids and ConesFinding Surface Area of

a Pyramid

Surface area = all triangle areas + base area

urface Area of Pyramids and ConesFinding Surface Area of a Cone

Surface area = cone wrapping area + 1 circle area

SA = (½)2rl + B r = radius of circle l = is lateral height (height of cone) B = area of base (r2)

SimplifiedSA = rl + B

Surface Area of Pyramids and ConesLet’s Try

You Try!

SA = (8)(14) + (8)2

SA = 112+ 64SA = 176 ft2

SA = (7.25)(23) + (7.25)2

SA 166.75 + 52.5625SA = 219.3125 m2

688.6 m2

14.5