Triangular Pyramids. 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.

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Presentation transcript:

Triangular Pyramids

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.

Surface Area of Triangular Pyramid 9 in 15 in 6 in

Surface Area of Triangular Pyramid 10 yd 7 yd 18 yd

Surface Area of Triangular Pyramid 7 cm 22 in 20 in 3.6 in

Volume Step 1: Find the area of the base of the pyramid. Step 2: Multiply by the height of the pyramid. (Don’t use the slant height) Step 3: Multiply by 1/3. V = 1/3Bh

Volume of Triangular Pyramid 9 in 15 in 6 in

Volume of Triangular Pyramid 10 yd 7 yd 18 yd

Volume of Triangular Pyramid 7 cm 22 in 20 in 3.6 in