The circumference (C) of the base of a grain silo is 160 feet. To the nearest tenth, what is the radius (r) of the silo? (C = 2πr)
A) 18.5 feet
Eliminate
B) 25.5 feet
C) 50.9 feet
D) 64.8 feet
PLSSSSSSS HELP
too right.
so it would equal up too 25.5 Right?
i think so
To find the radius (r) of the silo, we can use the formula for the circumference of a circle: C = 2πr.
Given that the circumference (C) of the base of the silo is 160 feet, we can plug this value into the formula:
160 = 2πr
To solve for r, divide both sides of the equation by 2π:
160 / (2π) = r
Using a calculator to approximate the value of π as 3.14, we can calculate:
r ≈ 160 / (2 * 3.14) = 25.4777...
To the nearest tenth, the radius (r) of the silo is approximately 25.5 feet.
Therefore, the correct answer is B) 25.5 feet.
they give you the formula ... C = 2πr
dividing by 2π ... r = C / (2 π)
π is the symbol for pi ... 3.14159...