The circumference of the circle = C = 2πr = 24 cm,
Where, r = √x+2
Or, 2π(√x+2) = 24
Or, (√x+2) = 24/2π = 24/2×22/7 = 24×7/44 = 3.82
Or, (√x+2) = 3.82
Squaring both sides,
(√x+2)² = (3.82)²
Or, x+2 = 14.59
Or, x = 14.59 - 2
Or, x = 12.59 cm
And r = √x+2 = √12.59+2 = √14.59 = 3.82 cm
Therefore, x = 12.59 cm and radius = r = 3.82 cm
