SOLUTION: an earthquake was felt throughout a circular area of 1,808.64 square miles. what is the radius of the circular area?
a- 24 miles
b- 576 miles
c- 12 miles
d- 20 miles
Algebra.Com
Question 4036: an earthquake was felt throughout a circular area of 1,808.64 square miles. what is the radius of the circular area?
a- 24 miles
b- 576 miles
c- 12 miles
d- 20 miles
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
The area of a circle is given by: A = (pi)(r^2)
The problem gives the area as: 1,808.64 sq. mi.
So, (pi)(r^2) = 1,808.64 Solve for r. Divide both sides by pi (3.14)
r^2 = 1.808.64/3.14
r^2 = 576 Take the square root of both sides.
r = 24 Miles.
RELATED QUESTIONS
A circular pen has an area of 64 times 3.14 square yards. What is the circumference of... (answered by macston)
what is the radius of a circular pool if its area of 314 square... (answered by tutor_paul)
A square fence with an area of 100ft^2 is reshaped into a circular fence. What is the... (answered by Alan3354)
A circular room has a floor surface area of 400π square feet. What is the radius of... (answered by Alan3354,Othel,MathTherapy)
what is the volume and surface area of a circular cylinder with the radius of... (answered by ewatrrr)
If the surface area of a right circular cylinder is 12pie and the height is 1, what is... (answered by solver91311)
The area of a circle varies directly as the square of the radius. A circular pizza with a (answered by josgarithmetic)
Find the perimeter of a circular sector with a radius of 5 meters and an area of 32... (answered by josgarithmetic)
A pizza had an 80 foot diameter. What was the area of this circular... (answered by ewatrrr)