Perimeter and Area
CBSE · Class 6 · Mathematics
Flashcards for Perimeter and Area — CBSE Class 6 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.
What is the perimeter of any closed plane figure?
Answer
The perimeter of any closed plane figure is the distance covered along its boundary when you go around it once. For polygons, it is the sum of the lengths of all its sides.
What is the formula for the perimeter of a rectangle?
Answer
Perimeter of a rectangle = 2 × (length + breadth). This is because opposite sides of a rectangle are equal, so we add length + breadth + length + breadth = 2 × (length + breadth).
What is the formula for the perimeter of a square?
Answer
Perimeter of a square = 4 × length of one side. Since all four sides of a square are equal, we multiply the length of one side by 4.
How do you find the perimeter of a triangle?
Answer
Perimeter of a triangle = sum of the lengths of its three sides. Add all three side lengths together to get the perimeter.
A rectangular tablecloth is 5 m long and 3 m wide. How much lace is needed to go around its border?
Answer
Perimeter = 2 × (length + breadth) = 2 × (5 + 3) = 2 × 8 = 16 m. So, 16 m of lace is needed.
If the perimeter of a square is 24 cm, what is the length of each side?
Answer
Since perimeter of square = 4 × side length, we have 24 = 4 × side length. Therefore, side length = 24 ÷ 4 = 6 cm.
What is the formula for the perimeter of an equilateral triangle?
Answer
Perimeter of an equilateral triangle = 3 × length of one side. Since all three sides are equal in an equilateral triangle, we multiply one side length by 3.
What is the area of a closed figure?
Answer
The area of a closed figure is the amount of region enclosed by the figure. It measures how much space is inside the boundary of the shape.
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Perimeter and Area covers several key topics that are frequently asked in CBSE Class 6 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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