SaiBook.us Geometry

Lesson

Title: Surface area for Prism & Sphere

Grade: 6-a Lesson: S3-L3

Explanation: Hello students, let us learn a new topic in geometry today with definitions, concepts, examples, and worksheets included.

Lesson:

Definition: Surface area of Prism

A prism’s surface area is the sum of all its face areas, with two types: lateral surface area and total surface area.
The lateral surface area is the area of all the faces except the two parallel bases.

$1$

Explanation: This image shows the formulas for a prism.

Definition: Surface area of Sphere

The surface area of a sphere is the measure of the total area that the surface of the sphere occupies in three-dimensional space.
The formula for the surface area of a sphere is:
A = \$4πr^2\$ where A is the surface area of the sphere, and r is the radius of the sphere.

$2$

Explanation: This image shows the surface area of a sphere with a radius of 4 meters is 200.96 sq.meters.