Answer:
511.04m^2
Step-by-step explanation:
A circular hot spring has diameter of 110 meters. Over time, the diameter of the spring decreases by 3 meters. By how many square meters does the area of the hot spring decrease
Area of a circle = πr²
Where : = π = pi = 3.14
the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.
A radius is half of the diameter
3.14 x (110/2)² = 9498.5
Diameter after decrease = 110 - 3 = 107
3.14 x (107/2)² = 8987.5
Decrease in area = 9498.5 - 8987.5 = 511.03
55
52
9498.5
