Volume = 1/3 * area of the base * height
75 = 1/3 * 5^2 * h
h = 75 * 3 / 25 = 3*3 = 9 feet answer
Answer: The diameter of Eduardo's hair is greater than Orla's hair by 0.007 cm.
Step-by-step explanation:
Given: The diameter of Orla's hair strand = 0.005 cm
The diameter of Eduardo's hair strand = 0.012 cm
Clearly , 
The difference between the diameters=
Thus, the diameter of Eduardo's hair is greater than Orla's hair by 0.007 cm.
Area of triangle is 1/2 * base * height.
we can turn this into a right triangle to get the height by saying the base is 5 and the hypotenuse of right triangle is 4. now to get the height we can use sine.
sin(a) = opposite/hypotenuse
sin (79) = x/4
x = 3.92
area = 1/2 * 3.92 * 5
area = 9.8