Pupils in a school prepared a circular flower garden of diameter 28 meters. They dug holes each 4 meters apart along the circumference for planting flowers. How many holes were dug?
the perimeter was 28π = 87.9 meters
Now you should be able to calculate the holes.
Circumference = pi*2r = 3.14 * 28 = 88.0 m.
88m * 1hole/4m = 22 Holes.
To find the number of holes dug along the circumference of the circular flower garden, we need to calculate the circumference and divide it by the distance between each hole.
The formula for the circumference of a circle is given as:
C = π * d,
where C is the circumference, π (pi) is a mathematical constant (approximately 3.14159), and d is the diameter.
In this case, the diameter of the flower garden is given as 28 meters. So we can calculate the circumference using the formula:
C = π * 28.
Now, let's substitute the value of π (pi):
C = 3.14159 * 28 = 87.96492.
Therefore, the circumference of the flower garden is approximately 87.96492 meters.
The distance between each hole is given as 4 meters. To find the number of holes, we divide the circumference by this distance:
Number of holes = Circumference / Distance between holes
= 87.96492 / 4
≈ 21.99123.
Since we can't have a fractional number of holes, we need to round the number to the nearest whole number. In this case, the number of holes dug along the circumference would be 22.
So, the pupils dug a total of 22 holes.