Measure the height of the flagpole

Experimental appliance

One meter ruler and tape measure.

test method

1, when the sun shines, erect a one-meter foot next to the flagpole.

2. Measure the shadow length of the flagpole with a tape measure and record it as x 1.

3. Measure the shadow length of one meter ruler with a tape measure as x2.

Step 4 calculate

Assuming that the flagpole height is x3, then

x3/x 1= 1/x2

So you can get the height of the flagpole.