Tutorial
GCSE Maths: Perimeter and Area of 2D Shapes
Learn to calculate the perimeter of any polygon and the area of common 2D shapes including rectangles, triangles, parallelograms, and trapeziums.
Tutorial
GCSE Maths: Perimeter and Area of 2D Shapes
Learn to calculate the perimeter of any polygon and the area of common 2D shapes including rectangles, triangles, parallelograms, and trapeziums.
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Deck Contents
24 CardsLesson#1
Welcome to this deck on perimeter and area. You'll learn the difference between these two important measurements and how to calculate them for common 2D shapes. We'll cover polygons, rectangles, triangles, parallelograms, and trapeziums.
Lesson#2
Let's start with perimeter. The perimeter is the total distance around the outside of a two-dimensional shape. Imagine walking along the very edge of a field; the total distance you walk is the perimeter.
Quiz#3
What is the perimeter of a 2D shape?
The distance around the outside
Lesson#4
To find the perimeter of any polygon, which is a shape with straight sides, you simply add together the lengths of all its sides.
Quiz#5
How do you find the perimeter of any polygon?
Add up all the side lengths
Lesson#6
For example, if you have a triangle with sides of length 2, 3, and 4 centimetres, its perimeter would be 2 plus 3 plus 4, which equals 9 centimetres.
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