Math Problem Statement
Calculate the area of a circle with a diameter of 16 inches.
Solution
To calculate the area of the circle shown in the image, we need to use the formula for the area of a circle:
The image gives the diameter as 16 inches, so the radius is half of that:
Using , we can now plug the radius into the formula:
So, the area of the circle is approximately 200.96 in², rounded to the nearest hundredth.
Would you like a detailed explanation or have any further questions?
Here are 5 questions that build upon this:
- What is the relationship between the radius and diameter of a circle?
- How would the area change if the diameter were doubled?
- Why is important in calculating the area of a circle?
- Can you calculate the circumference of this circle as well?
- How does changing the radius affect the area of the circle?
Tip: Always remember that the radius is half of the diameter when working with circles!
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Math Problem Analysis
Mathematical Concepts
Geometry
Area of Circles
Formulas
Area of a circle: A = πr²
Theorems
The relationship between the radius and diameter: r = d/2
Suitable Grade Level
Grades 6-8