The perimeter of a polygon is the total distance around its outside. To find it, you simply add up the lengths of all its sides. For example, if a square has sides of 5 cm each, its perimeter is $5 + 5 + 5 + 5 = 20$ cm. Easy peasy! 👍
For rectangles, remember that opposite sides are equal. So, if you know the length and width, you can quickly calculate the perimeter. And for irregular polygons, just measure each side and add them all together. Practice makes perfect, so let's dive into some questions!
Match the term with its definition:
| Term | Definition |
|---|---|
| 1. Polygon | A. The distance around a two-dimensional shape |
| 2. Perimeter | B. A straight line connecting two vertices |
| 3. Side | C. A closed shape made of straight lines |
| 4. Square | D. A polygon with four equal sides and four right angles |
| 5. Rectangle | E. A polygon with four sides, where opposite sides are equal and all angles are right angles |
Complete the following sentences:
Imagine you have a garden shaped like a pentagon (5 sides). You want to build a fence around it. If each side of the garden is 4 meters long, how much fencing material do you need? Explain your answer.
The perimeter of a polygon is the total distance around its outside. To find the perimeter, you simply add up the lengths of all its sides. For example, if a rectangle has sides of 5 cm and 3 cm, its perimeter is $5 + 3 + 5 + 3 = 16$ cm.
Let's practice! You'll be a perimeter pro in no time. Remember to measure each side and add them all up. You got this! 👍
Match the term with its definition:
| Term | Definition |
|---|---|
| 1. Perimeter | A. A flat shape with straight sides. |
| 2. Polygon | B. The distance around a shape. |
| 3. Side | C. A four-sided polygon. |
| 4. Rectangle | D. A straight line that forms part of the boundary of a shape. |
| 5. Square | E. A rectangle with all sides equal. |
The perimeter of a ________ is found by adding the lengths of all its ________. If a square has a side length of 4 cm, its perimeter is ________ cm. A polygon is a ________ shape with ________ sides.
Imagine you are building a fence around a rectangular garden. The garden is 8 meters long and 6 meters wide. How many meters of fencing will you need?
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