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VOLUME of a TRIANGULAR PRISM and UNKNOWN VALUES PRE380 When finding unknown values, plug what you know into the formula and solve for what’s missing! Find.

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Presentation on theme: "VOLUME of a TRIANGULAR PRISM and UNKNOWN VALUES PRE380 When finding unknown values, plug what you know into the formula and solve for what’s missing! Find."— Presentation transcript:

1 VOLUME of a TRIANGULAR PRISM and UNKNOWN VALUES PRE380 When finding unknown values, plug what you know into the formula and solve for what’s missing! Find the height of the triangular prism. The volume of the prism is 189 m 3. Volume = ( bh)h 189 = 6(7)h V = Ah A = Area of the base h = height of the solid 6 m h A triangle = bh m

2 VOLUME of a TRIANGULAR PRISM and UNKNOWN VALUES PRE380 6(7) = 42 Plug in what you know. (42) = 21 Divide both sides by = h The height of the prism is 9 meters!! 189 = (42)h = 21h 1212 The volume of the prism is 189 m 3. 6 m h 7 m A triangle = bh 1212 V = Ah A = Area of the base h = height of the solid 189 = 6(7)h 1212

3 VOLUME of a TRIANGULAR PRISM and UNKNOWN VALUES PRE380 The volume of the prism is 264 in 3. The height is 22 in. Find the area of the base. V = Ah A = Area of the base h = height of the solid A triangle = bh 1212 Don’t be mislead by how the solid sits. A triangle needs to be the base. If necessary, ROTATE IT!

4 VOLUME of a TRIANGULAR PRISM and UNKNOWN VALUES PRE380 The volume of the prism is 264 in 3. The height is 22 in. Find the area of the base. The area of the triangular base is 12 inches!! Plug in what you know. Divide both sides by = A22 12 = A V = Ah A = Area of the base h = height of the solid A triangle = bh


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