Subject: General Aptitude · Chapter: Area · Exam: · Marks: · Difficulty:
What is the area of the square ? (Bank P.O., 2008) I. One side of the square is 21 cm. II. The perimeter of the square is 84 cm.
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.
Explanation
I. Side $=21$ cm $\Rightarrow$ Area $=(\text{side})^2=441$ cm$^2$. II. Perimeter $=84$ cm $\Rightarrow$ Side $=\left(\frac{84}{4}\right)$ cm $=21$ cm $\Rightarrow$ Area $=(\text{Side})^2=441$ cm$^2$.
Explanation as extracted from the printed page; notation may be imperfect.