Circumference and Area of Circles
A circle has an area of 1256 square inches. What is the diameter of the circle. Use 7 = 3.14
O 10 in
O 20 in
O 40 in
O 60 in
Question
Question
Circumference and Area of Circles
A circle has an area of 1256 square inches. What is the diameter of the circle. Use 7 = 3.14
O 10 in
O 20 in
O 40 in
O 60 in
Step-by-step explanation:
Area of a circle = #r^2
1256 = 3.14 × r^2
r^2 = 1256/3.14
r^2 = 400
Square root of r = 20
Diameter = 2 × r = 2 × 20 = 40 inches