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Find the volume and the surface area.

Find the volume and the surface area. Volume: Bh (Base is a triangle) B = ½ (5)(1.5) = 3.75 Bh = (3.75)(4) = 15 cubic yards Surface Area: 2 triangles and 3 rectangles Area of triangles: ½ (5)(1.5)(2) = 7.5 3 rectangles: (2)(4) + (4)(4) + (4)(5) = 44

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Find the volume and the surface area.

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  1. Find the volume and the surface area.

  2. Volume: Bh (Base is a triangle) B = ½ (5)(1.5) = 3.75 Bh = (3.75)(4) = 15 cubic yards Surface Area: 2 triangles and 3 rectangles Area of triangles: ½ (5)(1.5)(2) = 7.5 3 rectangles: (2)(4) + (4)(4) + (4)(5) = 44 Surface Area = 7.5 + 44 = 51.5 square yds.

  3. Find the volume.

  4. Volume: 1/3 Bh r = 1 km Volume = (1/3)(3.14)(1)(1)(3) Volume = 3.14 cubic km or 3.1 cubic km rounded to the nearest tenth

  5. Find the volume and the surface area.

  6. Volume: lwh Volume = 17*10*4 = 680 cubic m Surface Area: 6 rectangles SA = 2(10*4 +17*10 + 17*4) = 556 square m

  7. A wheel with a diameter of 3 feet makes 120 revolutions. How many feet did the wheel travel? Round your answer to the nearest whole number.

  8. Find the circumference of the wheel using either the diameter or the radius. C = (3.14)(3) = 9.42 feet in 1 revolution 120 * 9.42 = 1130.4 feet in 120 revolutions Roundest to the nearest foot, this is 1130 feet.

  9. Draw the front, side and top views of the figure:

  10. How does the volume of this cylinder change if the height is doubled.

  11. If just the height is double the volume will double. However if the radius was doubled, the volume would increase 4 times.

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