Geometry videos

Radius, diameter, circumference & π

Radius & diameter from circumference

Labeling parts of a circle

Relating circumference and area

Partial circle area and arc length

Area of a circle

Finding circumference of a circle when given the area

Area of a shaded region

Impact of increasing the radius

Angles: introduction

Vertical angles

Complementary & supplementary angles

Vertical angles are congruent proof

Find measure of vertical angles

Equation practice with complementary angles

Equation practice with supplementary angles

Find measure of angles word problem

Equation practice with vertical angles

Construct a right isosceles triangle

Construct a triangle with constraints

Triangle inequality theorem

Slicing a rectangular pyramid

Volume word problem: gold ring

Volume of rectangles inside rectangles

Volume of triangular prism & cube