The surface area to your question is 6 FT
Answer: option D
Step-by-step explanation:
Remember the cosine identity:

Given the right triangle DFE shown in the image, you can identify that the adjacent side and the hypotenuse for the angle F of this triangle are:

Now you can substitute values into
and then reduce the fraction.
THerefore you get:
Answer:
The equation of the line that is passing through the point (5,4) and is parallel to x-axis would be 
Step-by-step explanation:
Given that the line passes through the point (5,4).
As the line is parallel to the x-axis, the slope of the line would be zero.
And we have point (5,4) from which the line is passing.
So, 
The equation of the line passing through point
is

So, the equation of the line that is passing through the point (5,4) and is parallel to x-axis would be 
3=4x-5
3+5=4x
8=4x
X=8/4=2
X=2 and Y=3
300m because area is Length x width and it's 3x as big as 10 meters it's 30 x 10= 300