If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

6th grade

Unit 10: Lesson 4

Nets of 3D figures
Math
6th grade
3D figures
Nets of 3D figures
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Surface area using nets

CCSS.Math: 6.G.A.4
Google Classroom

Problem

Check out this rectangular prism
The figure presents a rectangular prism. The line connecting the left and right faces is labeled as 2 units. The line connecting the top and bottom faces is labeled as 3 units. The line connecting the front and back faces is labeled as 5 units.
Find the surface area of the rectangular prism (above) using its net (below).
The figure presents a surface net of a rectangular prism. The net consists of 4 rectangles in a row, where the second rectangle from the left is also connected to a rectangle above it and a rectangle below it. The bottom of the left most rectangle is labeled as 3 units. The bottom of the second rectangle from the left is labeled as 2 units. The right side of the second rectangle from the left is labeled as 5 units. The left side of the rectangle located beneath the second rectangle is labeled as 3 units.
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
unitssquared
Stuck?
Stuck?