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14-03-2021
Mathematics

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a girl 2.2m tall observes that the angle of elevation of the top of a building 16m away from her is 45° find the height of the building

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reeserl reeserl

14-03-2021

Answer:

18.2 m = height of the building

Step-by-step explanation:

Let x = the distance from the top of the girl's head to the top of the building

tan 45 = x/16

x = 16 tan 45

x = 16 m

16 + 2.2 = 18.2 m = height of the building

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