To calculate the height of a tall building, we can use a laser distance meter. A laser meter is an instrument used to measure distances by using lasers.
Here are the steps to use a handheld laser distance meter to calculate the height of a tall building:
1. Choose an appropriate location: choose a location far enough away from the tall building to make sure you can see the top and bottom of the entire tall building.
2. Set up the laser distance meter: Place the laser meter on a stable surface and make sure it is aimed at the top and bottom of the tall building.
3. Measure the distance: Press the button on the handheld laser distance meter, it will emit a laser wave and calculate the distance from the laser distance meter to the top and bottom of the tall building.
4. Record data: Record the measured distance.
5. Calculate the height using trigonometry: Based on the measured distance, we can use trigonometry to calculate the height of the tall building. First, we need to measure the horizontal distance between where we are standing and the bottom of the tall building, and then use the measured distance and the horizontal distance to form a right triangle. By calculating the relationship between a certain angle of a triangle and two sides, we can deduce the height of a tall building.
6. Verify the results: To verify the results of our calculations, other measurement methods can be used, such as using aerial instruments or using height data provided in architectural drawings.