emmaaa6iwi2ie
emmaaa6iwi2ie emmaaa6iwi2ie
  • 14-03-2021
  • Mathematics
contestada

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​

Respuesta :

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

Answer Link

Otras preguntas

Use properties to find the sum or product
Let's assume for a moment that your house uses an average of 16kWh of electrical energy per day. If you could covert  the mass of a 46g golf ball into electrica
What are two cities located north of 15° north latitude and east of 105° east longitude
How do fungi benefit from being able to reproduce both asexually and sexually?
Use properties to find the sum or product
Can you fall in love with blue eyes and not fall in love with the person who has it?
A machine produces 75 widgets an hour. How many widgets does it produce in 6 minutes
round  this number 2.87 nearest tenth
Xiao's teacher asked him to rewrite the sum 60+90 as the product of the GCF of the two numbers and a sum. Xiao's wrote 3(20 + 30). What mistake did Xiao make? H
Simplify the ratio 19:114