Question

A wire of length 10 cms is bent so as to form an arc of a circle of radius 4 cms. What is the angle subtended at the centre in degree?

Answer 1

Q. A wire of length 10 cms is bent so as to form an arc of a circle of radius 4 cms. What is the angle subtended at the centre in degree?

$Ans: Here \: a \: formula \: for \: calculating \: the \: lenght \: of \: arc. \\ \theta \: (radian) = \frac{length \: of \: arc}{radius} \\ \\ \\ \theta = \frac{10}{4} = \frac{5}{2}$