A right angled triangle , whose perpendicular sides measure 1.8 cm and 2.4 cm ,is inscribed in a circle. What is the circumference of the circle (in cm)?

A right angled triangle , whose perpendicular sides measure 1.8 cm and 2.4 cm ,is inscribed in a circle. What is the circumference of the circle (in cm)? Correct Answer 3π

We know, (Hypotenuse)2 = (1.8)2 + (2.4)2 = 3.24 + 5.75 = 9⇒Hypotenuse = 9 = 3The circumfernce of the circle  = 2πr = π×2r = π×3 = 3π
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