From the given figure, find the circumference of the circle where AC is the diameter of the circle. (Use $\pi=3.14$)
Answer & explanation
Correct answer: option 4
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