ABC26GN4547 · Area
Subject: General Aptitude · Chapter: Area · Exam: · Marks: · Difficulty:
The difference between the circumference and the radius of a circle is 37 cm . The area of the circle is
(a)$111 \mathrm{cm}^{2}$
(b)$148 \mathrm{cm}^{2}$
(c)$154 \mathrm{cm}^{2}$
(d)$259 \mathrm{cm}^{2}$
Answer
Explanation
$2 \pi R-R=37 \Leftrightarrow\left(\frac{44}{7}-1\right) R=37 \Leftrightarrow R=7$. $$\text { ∴ Area of the circle }=\left(\frac{22}{7} \times 7 \times 7\right) \mathrm{cm}^{2}=154 \mathrm{cm}^{2} .$$
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