Answer: 50.24 square centimeters.
Step-by-step explanation:
Given: The radius of the circular lens of a magnifying glass = 4 centimeters
The area of a circle is given by :-
[tex]\text{Area}=\pi r^2[/tex], where r is the radius of the circle.
Then the area of the circular lens of a magnifying glass is given by :-
[tex]\text{Area}=\pi (4)^2=(3.14)(16)=50.24\text{ square centimeters }[/tex]
Hence, the area of the circular lens of a magnifying glass = 50.24 square centimeters.
