About 93,100 results
Open links in new tab
  1. Area and perimeter | Geometry (all content) | Math | Khan Academy

    Area and perimeter help us measure the size of 2D shapes. We’ll start with the area and perimeter of rectangles. From there, we’ll tackle trickier shapes, such as triangles and circles.

  2. Perimeter & area (video) | Perimeter | Khan Academy

    Perimeter is the distance around the outside of a shape. For example, if you walk around the edge of a playground, you're measuring its perimeter. Area is the amount of space inside a shape. …

  3. Perimeter and area and surface area | Khan Academy

    Find missing length when given area of a triangle Get 3 of 4 questions to level up!

  4. Perimeter and area | NCERT Math Class 7 | Khan Academy

    Find missing length when given area of a triangle Get 3 of 4 questions to level up!

  5. Area and perimeter | 4th grade math | Khan Academy

    Ready to put your math skills to the test? In this lesson, you'll learn all about area and perimeter! You'll explore how to find the area and perimeter of a rectangle. You'll practice labeling …

  6. Unit 1: Intro to area and perimeter - Khan Academy

    Area and perimeter help us measure the size of 2D shapes. We’ll start with the area and perimeter of rectangles. From there, we’ll tackle trickier shapes, such as triangles and circles.

  7. Perimeter and area | Class 7 (ICSE basics) | Math | Khan Academy

    Find missing length when given area of a triangle Get 3 of 4 questions to level up!

  8. Perimeter: introduction (video) - Khan Academy

    Perimeter and area are measured in two different units. One isn't bigger or smaller than the other because it is like comparing apples and oranges. perimeter measures length, think of steps in …

  9. Perimeter and area | MH Math Class 7 | Khan Academy

    Find missing length when given area of a triangle Get 3 of 4 questions to level up!

  10. Get ready for area and perimeter | Khan Academy

    Let's build a solid foundation of measurement and length so that we will be ready for area and perimeter in third grade. From identifying units of length in centimeter, meters, inches and feet, …