Bookmark and Share

Surface Area

In this topic, we will learn to find the surface areas of prisms, pyramids, and cylinders.

Topic: Surface Area - Prisms

  • The surface area of a solid is the sum of the areas of its surfaces

  • A net is the pattern made when the surface of a three-dimensional figure is laid out flat showing each face of the figure

  • Surface Area of a rectangular prism = 2 (Height x Width + Length x Width + Length x Height)

Topic: Surface Area - Pyramids

  • The surface area of a solid is the sum of the areas of all its surfaces

  • A net is the pattern made when the surface of a three-dimensional figure is laid out flat showing each face of the figure

  • The surface area of a pyramid equals the sum of the area of the base and the areas of the triangular faces

  • Area of the square base = Side x Side

  • Area of a triangle = 1/2 x Base x Height

Topic: Surface Area - Cylinders

  • The surface area of a solid is the sum of the areas of its surfaces

  • A net is the pattern made when the surface of a three-dimensional figure is laid out flat showing each face of the figure

  • The surface area of a cylinder equals sum of the area of its bases and area of its curved surface

  • To find the area of the curved surface of a cylinder, multiply its height by the circumference of the base

  • The circumference of each circular base is 2∏r, and the area is ∏r2
Other Resources
View all concepts
Smartest Way to Practice Math
TenMarks is the smartest way to practice and learn math online. Experience our interactive worksheets that engage students.
Personalized program, mapped to state standards
Interactive worksheets with hints and video lessons
Rewards and certificates motivate students
Only $10 a month
TenMarks - Experience