A circle and a rectangle have the same perimeter. The sides of the rectangle are 18 cm and 26 cm. What is the area of the circle ? Answers
A) 88 cm 2 B) 154 cm 2 C) 1250 cm 2 D) 616 cm 2 E) none of these

Rationale: perimeter of the circle = 2 π r = 2 ( 18 + 26 ) ⇒ 2 × 22 ⁄ 7 × r = 88 ⇒ r = 14 ∴ area of the circle = π r 2 = 22 ⁄ 7 × 14 × 14 = 616 cm 2 answer d
Answer: D