In this video we'll learn how to rotate figures in coordinate space, specifically, how to rotate them by 90 or 180 degrees. Rotation of a figure is a type of transformation of a figure, where we move it from one spot to another.

In this video we'll learn how to translate figures in coordinate space, specifically, how to move them by adding or subtracting a specific value from all of the x- or y-values in the coordinate points.

In this video we'll learn how to draw circumscribed circles of triangles and inscribed circles of triangles. A circumscribed circle is a circle for which all three vertices of the triangle lie on the circle. An inscribed circle is the circle that touches all three sides of the triangle.

In this video we'll learn how to find the perpendicular and angle bisectors of triangles. Perpendicular bisectors are the lines that are perpendicular to each side of the triangle and intersect them at their midpoints. The angle bisectors of a triangle are the lines that divide its interior angles perfectly in half.

In this video we'll learn how to use algebra to find the measures of angles that are given as algebraic expressions.

In this video we'll learn how to find the measures of angles, given that some of the angles are congruent and supplementary.

In this video we'll learn how to find the length of a line segment.

In this video we'll learn how to name simple geometric figures by labeling each vertex of the figure with a letter and identifying the figure by stringing the letters together in a clockwise or counter-clockwise order.

In this video we'll learn how to find the surface area of Spheres. The formula we always use to find surface area only requires us to know the length of the radius of the sphere. If we know the diameter of the sphere, we can take half of it to get the radius, and then plug the length of the radius into the equation for surface area.

In this video we'll learn how to find the volume of Spheres. We'll always use the same volume formula, which only requires us to know the length of the radius of the sphere. If we've been given the length of the diameter, we can just take half of the diameter to get the radius, and then plug the radius into the volume formula.