radius = 3
Answer:
28.27 square units
Circle with radius 3 units
Identify the formula for area of a circle
Substitute the given radius
Square the radius
Multiply by π (3.14159...)
Final answer
A = πr²
This formula calculates the area of a circle.
A circular pizza with 3 inch radius has 28.27 square inches of surface area
A circular pool with 3 meter radius covers 28.27 square meters
A round table with 3 foot radius = 28.27 square feet of table surface
The area of a circle is a fundamental concept in geometry. Area measures the amount of space inside a 2D shape, typically expressed in square units.
By using the formula A = πr², we can quickly and accurately calculate the area for any circle when we know the required measurements.
Get personalized 1-on-1 tutoring with expert geometry tutors. Master formulas, solve complex problems, and ace your exams!
Find Your Geometry Tutor