Answer:
first one ig
Step-by-step explanation:
Answer:
angle of elevation will be 
Step-by-step explanation:
Given,
height of tower = 150 ft
height of tower = 1200 ft
So, total height of peak of tower = 1200 + 150
= 1350 ft
distance of user from cell tower = 5 miles
= 5 x 5280 feet
= 26,400 feet
Since the height of user from sea level = 400 ft
so, height of peak of tower with respect to user = 1350 - 400 ft
= 950 ft
If the angle of depression is assumed as
, then we can write




So, the angle of elevation will be 
Answer:
d
Step-by-step explanation:
In order for the two triangles to be similar the ratio of each side has to be the same. in answer do the ratios would be 21 to 17.5 and 18 to 15 and both ratios equal 1.2 which means they are similar triangles.