• #### Area of Regular Polygons - Concept

##### Math›Geometry›Area
How to derive the formula to calculate the area of a regular polygon.
• #### Surface Area of Cones - Problem 2

##### Math›Geometry›Area
How to calculate the surface area of a cone, given a diameter and the slant height.
• #### Surface Area of Cylinders - Problem 2

##### Math›Geometry›Area
How to calculate the surface area of a cylinder with a smaller cylinder removed.
• #### Surface Area of Cylinders - Concept

##### Math›Geometry›Area
How to prove the surface area of a cylinder formula.
• #### Surface Area of Cylinders - Problem 1

##### Math›Geometry›Area
How to calculate the surface area of a cylinder.
• #### Surface Area of Pyramids - Problem 1

##### Math›Geometry›Area
How to calculate the surface area of a square pyramid, given the side length and height.
• #### Surface Area of Pyramids - Concept

##### Math›Geometry›Area
How to calculate the surface area of any pyramid, emphasizing regular polygons as bases.
• #### Surface Area of Cylinders - Problem 3

##### Math›Geometry›Area
How to calculate the surface area of a rectangular prism with a hole missing in the shape of a cylinder.
• #### Surface Area of Pyramids - Problem 2

##### Math›Geometry›Area
How to calculate the surface area of a regular hexagonal pyramid.
• #### Area of a Sector - Problem 1

##### Math›Geometry›Area
How to find the area of a sector when the radius and arc measure are given.
• #### Area of a Sector - Problem 2

##### Math›Geometry›Area
How to find the radius of a circle when the area and arc measure are given.
• #### Area of Regular Polygons - Problem 4

##### Math›Geometry›Area
How to find the area of a regular hexagon given only the length of the apothem.
• #### Area of Triangles - Problem 1

##### Math›Geometry›Area
How to find the height of a triangle, given the three sides of a right triangle, using the area of a triangle formula.
• #### Area of a Sector - Problem 3

##### Math›Geometry›Area
How to find the area of a sector given the arc measure and the length of the intercepted chord.
• #### Surface Area of Cones - Problem 1

##### Math›Geometry›Area
How to calculate the surface area of a cone, give a radius and slant height.
• #### Surface Area of Joined Solids - Concept

##### Math›Geometry›Area
How to calculate the surface area of a cylinder joined to a cone.
• #### Area of Parallelograms - Problem 3

##### Math›Geometry›Area
How to find the height of a parallelogram given two base lengths and a different height.
• #### Area of Trapezoids - Problem 1

##### Math›Geometry›Area
How to find the length of a base in a triangle where the area, other base, and height are known.
• #### Area of Trapezoids - Problem 2

##### Math›Geometry›Area
How to find the area of a trapezoid given the lengths of the four sides and the height of the trapezoid.
• #### Surface Area of Joined Solids - Problem 2

##### Math›Geometry›Area
How to calculate the surface area of a rectangular prism with half of a cylinder on top.