Calee Leger - 8th Grade Math
email: [email protected]
March 10-13
Unit 6 Assessment will be on Wednesday, March 11th!
Unit 6 Review and Start of Unit 7
8.G.C.9 Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve real-world and mathematical problems.
Students understand that the volume of a cylinder is 3 times the volume of a cone having the same base area and height or that the volume of a cone is 1/3 the volume of a cylinder having the same base area and height.
Students understand that the volume of a sphere is 2/3 the volume of a cylinder which has the same height and same diameter as the sphere.
Vocabulary:
cone: a three-dimensional figure with one circular base and one vertex, connected by a curved surface.
sphere: a three-dimensional figure in which every point is the same distance from the center.
cylinder: a three-dimensional figure with two parallel curved bases that are the same size. the bases are connected by a curved surface.
prism: a three-dimensional figure with two parallel bases that are the same size and shape. The other faces are parallelograms. A prism is named by the shape of the base.
radius (of a circle): a line segment from the center of a circle to any point on the circle. Also, the distance from the center to any point of on a circle.
vertex: the point where two rays, lines, or line segments meet to form an angle.
volume: the amount of space inside a solid figure. Volume is measure in cubic units such as cubic inches.