Estimate and measure the perimeters of shapes around you using a scale and write them in the space given below.
| S. No. | Object | Estimated perimeter in cm/m | Actual measure in cm/m |
|---|---|---|---|
| 1. | Desk | ||
| 2. | Blackboard | ||
| 3. | Classroom floor | ||
| 4. | |||
| 5. | |||
| 6. |
Activity: Estimate and measure perimeters of real-world objects.
Example objects and approximate perimeters:
(a) Desk: Perimeter 200-300 cm
(b) Blackboard: Perimeter 400-600 cm
(c) Classroom floor: Perimeter 2000-3000 cm
Note: Actual measurements depend on specific dimensions of each object.
Explanation
The chapter encourages students to apply perimeter concepts to real-world objects. Students first estimate, then measure using a scale or measuring tape, and compare their estimates with actual measurements.
Solution Steps
Select objects around you (e.g., desk, blackboard, classroom floor).
Estimate the perimeter of each object.
Measure the actual perimeter using a scale or measuring tape.
Compare your estimate with the actual measurement.