From the given figure, find the circumference of the circle where AC is the diameter of the circle. (Use $\pi=3.14$)

78.5 cm

Angle made by diameter on circumference is 90º.

ABC is a right angle triangle. So,

H² = P² + B²

AC² = 24² + 7²

= 576 + 49

= 625

AC = 25

Radius = \(\frac{25}{2}\) = 12.5

Circumference of circle = 2πr

= 2 × 3.14 × 12.5

= 78.5

The correct answer is Option (4) → 78.5 cm