Do a house like the
picture divide multiply to try and then bring down
Answer:
11.3°
Step-by-step explanation:
Refer the attached figure .
Height of building i.e. AB = 160 feet.
A helicopter takes off from the ground 800 feet from the base of a building i.e. BC = 800 ft.
We are required to find what angle did the helicopter take off from i.e. ∠ACB
We will use trigonometric ratio .







Thus the angle at which the helicopter take off from is 11.3°
To find the midpoint:
x=3-1/2= 1
y=5+7/2= 6
Diameter is 18
radius is half of diameter so 9
area is radius*pi ^2 which is 88.83
circumference is diameter * pi so 18*pi = 56.55
Answer:
any number grater than or equal to 21
Step-by-step explanation: