How do you calculate the area of a circle with a radius of 7?

Prepare for the FTCE Mathematics Grade 5-9 Test with targeted multiple choice questions and detailed explanations. Enhance your problem-solving skills and boost your confidence for the exam!

To find the area of a circle, you use the formula A = πr², where A represents the area and r is the radius of the circle.

In this case, the radius is given as 7. Plugging this value into the formula, we first square the radius:

r² = 7² = 49.

Now, substituting this back into the area formula gives:

A = π × 49 = 49π.

This shows that the area of the circle with a radius of 7 is 49π. The units for area, which would be in square units if specified, are implied in the formula but not given in the options. Each calculation upholds the relationship defined by the geometry of a circle. Thus, the correct choice representing the area of the circle is indeed 49π.

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