XY in cm
x-1+2x-1+2x-1=28
5x-3=28
5x=31
x=31/5
XY = (31/5×2-1) = (6.2×2-1) = 11.4 cm
The approximate length of rail that needs to be replaced is 7.1 ft
<h3>Length of arc</h3>
Since the pool is circular, the approximate length that needs to be replaced is an arc of length, L = Ф/360° × πD where
- Ф = central angle of rail section = 27° and
- D = diameter of circular pool = 30 ft
<h3>Approximate length of rail</h3>
So, substituting the values of the variables into the equation, we have
L = Ф/360° × πD
L = 27°/360° × π × 30 ft
L = 3/40 × π × 30 ft
L = 3/4 × π × 3 ft
L = 9/4 × π ft
L = 2.25 × π ft
L = 7.07 ft
L ≅ 7.1 ft
So, the approximate length of rail that needs to be replaced is 7.1 ft
Learn more about length of an arc here:
brainly.com/question/8402454
<span>Place the point of the compass on the intersection of AB¯¯¯¯¯ and CD¯¯¯¯¯ and extend the compasses to point R.</span>
Area of course also just a reminder Area is measured in square units such as square centimteres, square feet, square inches, etc
B or c im not sure but is one of the two
