Answer:
It would be 3,800
Step-by-step explanation:
You have to find the surface area of the post
( ( 90 x 10 ) x 4 ) + ( 10 x 10 ) x 2 ) = 3,800
3,600 + 200 = 3,800
Hope this helps
First, draw a diagram. The datum level would be where the helicopter is at up in the sky. An angle of depressing means that instead of rising, the angle start from the horizontal and moves clockwise. Then, you have the altitude which forms a vertical line opposite to the 18 degrees. You are to find x which is adjacent to the 18 degrees. Since the diagram forms a right angle, you use the tangent function:
tangent 18 = opposite / adjacent
tangent 18 = 1560 / adjacent
adjacent = 4,801.19
Thus, the horizontal distance is 4,801.19 ft
The answer is an eight sided shape; octagon
The probability is 1/999 since you pick one number out of 999 and only one is correct