Example: Every time it rains, Mr. Cruz saves water in a big clay jar called "tapayan" He covers them with a circular galvanized iron with a radius of 5 dm. What is the area of the circular cover?
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The area of a circle can be calculated using the formula:
A = πr²
Where A is the area and r is the radius.
In this problem, the radius of the circular cover is given as 5 dm, which is equivalent to 0.5 meters (since 1 dm = 0.1 m). Therefore, we can substitute this value into the formula to find the area:
A = π(0.5)²
A = π(0.25)
A ≈ 0.785 square meters
So the area of the circular cover is approximately 0.785 square meters.