Question

What is the area of a circle with a radius of 7 cm? (express your answer using ?.)
a. 196? cm2
b. 7? cm2
c. 343? cm2
d. 49? cm2?

Answer 1

hello : 
the area of a circle i s : A = πr²     r : radius
A = 3.14×(7)² = ......

Answer 2

22/7×7×7
=144cm^2 this is the correct answer