Emmanuel University of Kansas US httpscoursewareku edubbcsw

Emmanuel University of Kansas [US] | https://courseware.ku .edu/bbcswebdav/pid-6694123-dt-content-rid-23225797I/courses/4182-50800/Distance%20and%20Height.pdf - Find the height of the building below from outside using tools shown below. a) Measuring tape b) Tapping pins c) Range poles

Solution

Answer:-It is oldest method for measuring height of building. It is the simplest method, it involves measuring the shadow of a tall building on the ground. This method requires patience and sunlight. It can be used if we have to measure the height of a building where the space around the building is flat and vacant. We need a range pole and a measuring tape. Place the range poles on to the ground so it stands erect without any support. Ensure that the range pole is absolutely straight extending upwards. Now be patient and wait till the length of the shadow of the range pole equals its height above the ground. Measure the length of the shadow with the measuring tape. It is obvious that at this moment, the length of the shadow of the building is equal to its height.