A = s^2
A - 21 * 21
A = ________ sq. in.
What is the area of a square computer screen with 21-in. sides?
A. 42 sq. in.
B. 441 sq. in.
C. 220 sq. in.
D. 84 sq. in.
I am not so sure if I add all the numbers or multiply them?
My sister told me to pick D but I don't know for sure.
4 answers
Ohh B.441 sq.in.
Yes. B is right.
multiply 21 times 21 to find area.
Don't worry, you'll get the hang of it soon!
Don't worry, you'll get the hang of it soon!
2 answers