Math Problem Statement
The diameter of a circle is 14 m. Find its area to the nearest whole number.
Solution
To find the area of a circle when the diameter is given, you can use the formula:
First, find the radius () of the circle, which is half of the diameter:
Now, substitute the radius into the area formula:
Using the value of :
Rounding to the nearest whole number:
So, the area of the circle is 154 square meters.
Would you like more details or have any other questions?
Here are 5 related questions:
- How would the area change if the diameter were doubled?
- What is the circumference of the circle with the given diameter?
- How do you find the area of a semicircle with the same diameter?
- What is the relationship between the radius and the area of a circle?
- How would the area calculation differ if using an approximate value of (like 3.14)?
Tip: Always remember that the radius is half of the diameter when working with circles.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Geometry
Circles
Formulas
Area of a circle: π × r²
Radius: Diameter / 2
Theorems
Area formula for a circle
Suitable Grade Level
Grades 6-8