Collect data: Beginning with Na, record the number of energy levels, number of protons, and atomic radius for each element in period 3.
| Element | Na | Mg | Al | Si | P | S | Cl | Ar |
|---|---|---|---|---|---|---|---|
| Number of energy levels | | | | | | | |
| Number of protons | | | | | | | |
| Atomic radius (pm) | | | | | | | |
Answer (2)
First look: More than 324 square feet :) Now, l = 2 π ∗ r which means that r = 2 π l . But l is the original perimeter, 4 times the side of the square, that is, 72 ft. So, r = 2 π 72 = π 36 Now, the area of that circle is A = π ∗ r 2 = π ∗ π 2 1296 = π 1296 , which is about 412.5 square feet. It's true, that's more (that's the most you can actually get with that amount of fence :) )
The area of the circular fence that the farmer creates using the same length of fencing as the square fence is approximately 412.68 square feet. This is calculated by first finding the perimeter of the original square and then determining the area using the radius derived from that perimeter. The steps involve using the circumference formula for circles and the area formula for circles.
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