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Volume of Triangular Prism . Volume of a Triangular Prism. Volume of a prism = Area x length. Area. Length . Area of triangle = ½ x base x height. 1. 6 cm. 7 cm. 2. 15 cm. 10 cm. THE AREA OF A TRIANGLE . Area = ½ x base x height . base. Area = ½ x 7 x 6 = ½ x 42
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Volume of a Triangular Prism Volume of a prism = Area x length Area Length Area of triangle = ½ x base x height
1. 6 cm 7 cm 2. 15 cm 10 cm THE AREA OF A TRIANGLE Area = ½ x base x height base Area = ½ x 7 x 6 = ½ x 42 = 21 cm2 Area = ½ x 10 x 15 = ½ x 150 = 75 cm2
Example 1 Area of triangle = ½ x 8 x 6 = ½ x 48 = 24 cm2 Volume = area x length = 24 X 7 = 168 cm3 Example 2 6 cm 7 cm 5 cm 8 cm 6 cm 4 cm Area of triangle = ½ x 5 x 4 = ½ x 20 = 10 cm2 Volume = area x length = 10 X 6 = 60 cm3
Example 3 Area of triangle = ½ x 5 x 4.2 = ½ x 21 = 10.5 m2 Volume = area x length = 10.5 X 6 = 63 m3 5 m 6 m 420 cm