radius = 4
Answer:
50.27 square units
Circle with radius 4 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 4 inch radius has 50.27 square inches of surface area
A circular pool with 4 meter radius covers 50.27 square meters
A round table with 4 foot radius = 50.27 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