**The diameter of a circle is 5 ft. What is the area of the circle?**
https://socratic.org/questions/the-diameter-of-a-circle-is-5-ft-what-is-the-area-of-the-circle

May 23, 2018 · You need to know the formula for calculating the area of a circle: πr2. So if you know that the diameter is 5 ft, you can calculate the radius. The radius the measurement in a circle from the middle to an outer edge: this means that r = d 2. So therefore, 5 2 = 2.5f t. Now we can calculate the area using the formula. 2.52 = 6.25.

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