Track quiz
Six ideas, seven checks. The table first, so you have somewhere to look back.
| Move | How it goes |
|---|---|
| Find a perimeter | Walk every side once, add the lengths. |
| Shortcut for a rectangle | 2 × (length + breadth). |
| Find an area | Count whole unit squares, no gaps, no overlaps. |
| Area of a rectangle | length × breadth. |
| Compare two pens | Same rope does not mean the same area. |
| Split an odd shape | Break it into rectangles, then add their areas. |
You walk all the way around a courtyard. You add up every side. What have you found?
A rectangle is 9 cm long and 5 cm wide. What is its perimeter?
A rectangle has a perimeter of 20 cm. Its length is 6 cm. What is its breadth?
A shape is tiled with 15 unit squares. Each is 1 cm by 1 cm. No gaps, no overlaps. What is its area?
A rectangle is 8 cm long and 3 cm wide. What is its area?
Two pens are each fenced with 20 m of rope. One is a 5 m square. The other is 8 m by 2 m. What is true about their areas?
A room is shaped like an L. A smaller room is cut out of one corner. What is the safest way to find its floor area?
That is Chapter 6, Perimeter and Area, in your NCERT book. You measured both before you read either.
Next: Fractions. Equal parts of one whole. And the two numbers that name a part.