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Perimeter Video Lecture - Class 4
FAQs on Perimeter Video Lecture - Class 4
| 1. What is the definition of perimeter? |  |
Ans. Perimeter is the total length of the boundary of a closed figure or shape. It is calculated by adding the lengths of all the sides of the figure.
| 2. How do you calculate the perimeter of a rectangle? | |
Ans. To calculate the perimeter of a rectangle, you add the lengths of all four sides of the rectangle. If the length of the rectangle is L and the width is W, then the perimeter is given by the formula P = 2L + 2W.
| 3. Can the perimeter of a triangle be negative? | |
Ans. No, the perimeter of a triangle cannot be negative. Perimeter represents a physical length, and length cannot be negative. Therefore, the perimeter of a triangle will always be a positive value.
| 4. How does the perimeter of a circle differ from other shapes? | |
Ans. The perimeter of a circle is known as the circumference. It is calculated by multiplying the diameter of the circle by pi (π) or by multiplying the radius by 2π. Unlike other shapes, the perimeter of a circle does not involve adding the lengths of individual sides.
| 5. What is the importance of calculating the perimeter in real-life situations? | |
Ans. Calculating the perimeter is important in real-life situations as it helps determine the amount of material needed to enclose a given area. For example, when building a fence, calculating the perimeter of the area to be fenced will help determine the amount of fencing material required. Similarly, in construction or landscaping, knowing the perimeter of a plot of land can help estimate the amount of material needed for borders or paths.
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Nov 16, 2024 Last updated |
Perimeter for Class 42024 is part of Class 4 preparation. The notes and questions for Perimeter
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and tests below for Perimeter.
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