Question

A rectangular painting has an area equal to $45$ $uni{t}^2$. What are its possible integer dimensions?

• A. $1\times 45uni{t}^2$
• B. $4\times 5uni{t}^2$
• C. $4\times 9uni{t}^2$
• D. $9\times 5uni{t}^2$
• E. $5\times 9uni{t}^2$
• F. $$ 2\times 18uni{t}^2${}^{}$
• G. $$ 18\times 2uni{t}^2${}^{}$
• H. $2\times 9uni{t}^2$
• I. $45\times 1uni{t}^2$
• J. $9\times 2uni{t}^2$

Answer 1

Answer: (A), (D), (E), (F), (G), (I)

$45\times 1uni{t}^2$