Measure your distance from the tower and you know its height.įor the third technique you need a protractor, drinking straw, tape measure and a calculator that will handle trigonometric functions. Since you are sighting the top of the tower at a 45-degree angle, your distance from the tower is equal to the height of the tower. Walk a distance away from the tower until you can see the top of the tower through the straw.
Hold the protractor with its flat side level with the horizon and then sight through the drinking straw.
Tape the drinking straw to the protractor at the 45 degree angle mark. Apply the ratio to discover the tower's height.įor the second technique you need a drinking straw, a protractor, some scotch tape and a measuring tape.Calculate the ratio of the broomstick's shadow length to the broomstick's height.Measure the length of the broomstick's shadow.
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