Asked by Brooklyn

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.

Answers

Answered by Ms. Sue
A = s^2
A - 21 * 21

A = ________ sq. in.

Answered by Brooklyn
Ohh B.441 sq.in.
Answered by Ms. Sue
Yes. B is right.

Answered by missmath
multiply 21 times 21 to find area.
Don't worry, you'll get the hang of it soon!
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