Triangular Pyramids

1
Triangular Pyramids
2
Surface Area

• Step 1 Find the area of the base of the
  pyramid.
• Step 2 Find the area of the 3 congruent
  triangles.
• Step 3 Add them up.

3
Surface Area of Triangular Pyramid
9 in
6 in
15 in
4
Surface Area of Triangular Pyramid
10 yd
7 yd
18 yd
5
Surface Area of Triangular Pyramid
22 in
3.6 in
7 cm
20 in
6
Volume

• Step 1 Find the area of the base of the
  pyramid.
• Step 2 Multiply by the height of the pyramid.
  (Dont use the slant height)
• Step 3 Multiply by 1/3.

V 1/3Bh
7
Volume of Triangular Pyramid
9 in
6 in
15 in
8
Volume of Triangular Pyramid
10 yd
7 yd
18 yd
9
Volume of Triangular Pyramid
22 in
3.6 in
7 cm
20 in