Name the device which you will use to measure the perimeter of your play ground. Describe in steps how you will use it.

The device used to measure the perimeter of a playground is a measuring tape.

Procedure to measure the perimeter of play ground:

1. Select a Starting Point:
   Choose one corner of the playground as your starting point.

2. Secure the Tape:
   Place the end of the measuring tape at this point. You can secure it with a peg, weight, or ask a helper to hold it firmly.

3. Measure the First Side:
   Stretch the tape tightly along the first side of the boundary, making sure it is straight and does not sag or twist.

4. Note the Length:
   When you reach the end of the side, record the measured length in your notebook.

5. Mark the Endpoint:
   Use chalk, a stone, or a stick to mark the spot where the tape ends.

6. Continue Measuring:
   From the marked point, measure the next side in the same way.

7. Repeat for All Sides:
   Continue this process until you have measured all sides of the playground.

8. Verify Alignment:
   At each corner, ensure the tape aligns properly so that no extra length or gap is included.

9. Record All Measurements:
   Write down the lengths of all sides clearly.

10. Calculate the Perimeter:
    Add together the lengths of all the sides to get the total perimeter of the playground.