Subject: General Aptitude · Chapter: Area · Exam: 2008 · Marks: · Difficulty:
If the length of diagonal AC of a square ABCD is 5.2 cm, then the area of the square is
(a)10.52 sq.cm
(b)11.52 sq.cm
(c)12.52 sq.cm
(d)13.52 sq.cm
Answer
Answer (as printed): D
Explanation
Area of the square $=\left[\frac{1}{2} \times(5.2)^{2}\right] \mathrm{cm}^{2}$ $$=\left(\frac{1}{2} \times 27.04\right) \mathrm{cm}^{2}=13.52 \mathrm{cm}^{2} .$$