First, let's get the outside area.
A = pi * r^2
A = 3.14 * 10.24
A = 32.1536
Now, the inside area:
A = 3.14 * 2^2
A = 12.56
Subtract:
32.1536 - 12.56 = ?
The image shows a ring, the inside raius is 2.0m, and the outside radius is 3.2m. The area of the ring is...
plz help!! thx.
A = pi * r^2
A = 3.14 * 10.24
A = 32.1536
Now, the inside area:
A = 3.14 * 2^2
A = 12.56
Subtract:
32.1536 - 12.56 = ?
3.2^2pi its 10.24pi
2^2pi its 4pi
then subtract like terms
(10.24 - 4) pi = 6.24pi
~19.59SqU (Square Units)
First, let's calculate the area of the smaller circle using the formula for the area of a circle: A = π * r^2, where r is the radius.
Radius of the smaller circle (inside radius) = 2.0m
Area of the smaller circle = π * (2.0)^2 = 4π square meters
Next, let's calculate the area of the larger circle using the same formula:
Radius of the larger circle (outside radius) = 3.2m
Area of the larger circle = π * (3.2)^2 = 10.24π square meters
Now, to find the area of the ring, we subtract the area of the smaller circle from the area of the larger circle:
Area of the ring = Area of the larger circle - Area of the smaller circle
= 10.24Ï€ - 4Ï€
= 6.24Ï€ square meters
To find the area to the nearest square unit, we need to evaluate the numerical value of the area using an approximation for π. Let's use 3.14 as an approximation for π:
Area of the ring ≈ 6.24 * 3.14
≈ 19.54 square meters
Therefore, the area of the ring to the nearest square unit is approximately 20 square meters.