Geometry Unit 12A

This set of flashcards covers key formulas and concepts from geometry related to surface areas of various solids and properties of polyhedrons.

Surface Area of a Pyramid

SA = A + ½ pl, where A is the base area and p is the perimeter of the base.

Surface Area of a Cone

S = A + ace, where A is the base area and c is the slant height.

Surface Area of a Right Prism

S = 2A + Ph, where A is the base area, P is the perimeter of the base, and h is the height.

Surface Area of a Sphere

S = 4πr², where r is the radius.

Surface Area of a Cylinder

S = 2A + Ch, where A is the base area, C is the circumference of the base, and h is the height.

Pentagonal Pyramid

A polyhedron with a pentagonal base and 5 triangular faces.

Rectangular Prism

A polyhedron with 6 rectangular faces.

What is the formula for the surface area of a sphere?

S = 4πr².

What is the number of faces on a rectangular prism?

6 faces.

What is the formula for the surface area of a cylinder?

S = 2A + Ch.