Answer:
Step-by-step explanation:
The formula for determining the area of a rectangle is expressed as
Area = length × width
Length = 100 m
Width = 52 m
Area of rectangle = 100 × 52 = 5200 m²
A semicircle is half of a circle
The formula for determining the area of a semicircle is
Area = 1/2 × πr²
Diameter = 52 m
Radius = diameter/2 = 52/2
Radius = 26 m
The area of each semicircle is
1/2 × 3.14 × 26² = 1061.32 m²
The area of the surface of the pool is
1061.32 + 1061.32 + 5200 = 7322.64 m²
Answer:
percent 88%
fraction 44/50
ratio 44:50
Step-by-step explanation:
The answer to your question would be true.
Similarly to fact that a two-order uses two equations, and a three-order system uses three, so a four-order uses four. Basically, just remember that the number of equations matches the number of the order.
You have to use the Law of Cosines twice here. Let's find angle A first:
. Doing a bit of simplifying you get
. Simplifying a bit more gives you -544=-696cosA. cosA = .78160919 and that A = 38.6. Actually, now that I think about it we can now move to the Law of Sines to find another angle because the triangle is not a right triangle. Just trust me. Let's find angle B now.
and that
. sinB = .3565026267 and that angle B is 20.9. Knowing those 2 angles we can find C: 180-38.6-20.9=120.5 and there you have it.
You would do 120/300 = p/100 and you would get 40%