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    Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems.

    Give an informal argument for the formulas for the circumference of a circle, area of a circle, volume of a cylinder, pyramid, and cone.

    Apply the formulas for the volume of cones, cylinders, and spheres and use them to solve real-world and mathematical problems.

     
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    Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.

     
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    Construct a tangent line from a point outside a given circle to the circle.

    Derive using similarity the fact that the length of the arc intercepted by an angle is proportional to the radius, and define the radian measure of the angle as the constant of proportionality; derive the formula for the area of a sector.

     
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    Use volume formulas for cylinders, pyramids, cones, and spheres to solve problems.

    Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve real-world and mathematical problems.

     
    00:00

    Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.