class 3 Activity 4 to measure the dimensions of the floor of a room in the house using 1m long thick string

Lab Activity-4

To measure the dimensions of the floor of a room in the house using 1m long thick string.

Procedure:

Step 1: Cut a piece of string 1 m long using a metre scale. Step 2: Place one end of the 1 m string at one of the corners of the floor and stretch, keeping it straight along one side of the floor [Fig. 4(a)]. 

Step 3: Mark the position of the other end of the string on the floor with a piece of chalk or pencil.

Step 4: Remove the string from this position and place it again away from the corner along the side of the floor keeping its one end at the marked position. Step 5: Mark the position of the other end of the string on the floor [Fig. 4(b)].

String

String

Floor

Floor

Fig. 4(a)

Fig. 4(b)

Step 6: Proceed further in the same way and complete the measurement of this side of the floor considering lengths (if needed) smaller than 1 m as mor by folding the string. m

Step 7: Record your observations.

Observations:

Similarly measure the lengths of other sides of the floor and record your Follow the same process to measure the dimensions of floor of other rooms in your house.

 observations.

Room Number

Length of the 1st side

Length of the 2nd side

Length of the 3rd side

Length of the 4th side