IMAT Circle and circumference questions

Sample questions

1. 1IMAT Doutor

   What is the length of an arc subtending $90^{\circ }$ at the centre of a circle of radius 4 cm?
   1. A$4\pi$ cm
   2. B$8\pi$ cm
   3. C$\pi$ cm
   4. D$16\pi$ cm
   5. E$2\pi$ cm
   Show answer

2. 2IMAT 2026 Q57

   A circle has the equation x² + y² + 5x + 4y = 0. Which of the following statements is true?
   1. AIt has zero radius
   2. BIt is centred on the x-axis
   3. CIt is centred on the y-axis
   4. DIt passes through the origin
   5. EIt has its centre at the origin
   Show answer