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 ? Choose the correct choice from the following.
A) 88 cm2 B) 154 cm2 C) 1250 cm2 D) 616 cm2 E) None of these
Perimeter of the circle = 2πr = 2(18 + 26)   ⇒ 2 × 22⁄7 × r = 88 ⇒ r = 14   ∴ Area of the circle   = πr2 = 22⁄7 × 14 × 14 = 616 cm2   Answer 616 cm2
<result>D</result>
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 ?