A person whose eye level is 15 feet above the ground is looking at a building. The angle of elevation to the top of the building
is 40° and the angle of depression to the bottom of the building is 15°. What is the height in feet of the building?
1 answer:
Answer:
61.97 feets
Step-by-step explanation:
Using trigonometry :
Horizontal distance between the person and building,
Let distance = d
Tan 15 = 15 / d
0.2679491 * d = 15
d = 15 / 0.2679491
d = 55.980781
To obtain the height, h :
tan 40 = (h-15)/d
d = 55.98
h-15 = 55.98 (tan 40°)
h - 15 = 55.98 * 0.8390996
h - 15 = 46.972797
h = 46.972797 + 15
h = 61.972797
h = 61.97 feets
You might be interested in
A^3-19 should be the answer, good luck
40; base it off of the y-intercept [C]. What is the unit of measurement?
Answer:
11 kittens and 12 parakeets
Step-by-step explanation:
each kitten has 4 feet while each parakeet has 2
11 x 4 = 44 (kittens)
12 x 2 = 24 (parakeets)
11 + 12 is 23 which is your 23 heads.
44 + 24 is 68 which would be your feet
Answer:
D
The numbers are already in order so you don't need to do anything
Answer:
a) 0.46
b) (2341.39, 3230.61)
c) For those Russians who do smoke, estimate the number of cigarettes smoked per day.= 23
Step-by-step explanation:
check below for more detailed solution
