A practical application of the trigonometric functions is to find the measure of lengths that you cannot measure. Very frequently, angles of depression and elevation are used in these types of problems.
Angle of Depression: The angle measured from the horizon or horizontal line, down.
Angle of Elevation: The angle measure from the horizon or horizontal line, up.
Answer:
here your answer
Step-by-step explanation:
let cp of one pen be x
cp of 5 pen = 5x
cp of 5 pen = sp of 4 pen
5x = sp of 4 pen
4x = cp of 4 pen ( cp of 1 pen = x)
profit = 5x-4x
= x
profit % = profit / cp ×100 = x/4x × 100
= 25 %
Answer:
V = 24.28 in ^3
Step-by-step explanation:
The area of the base is
A =5/2 × s × a where s is the side length and a is the apothem
A = 5/2 ( 2.13) * .87
A = 4.63275
The volume is
V = Bh where B is the area of the base and h is the height
V = 4.63275 ( 5.24)
V =24.27561 in^3
Rounding to the hundredth
V = 24.28 in ^3