Question

In a pie chart, central angle of a component having value 80 is 20° then the central angle of component whose value is 156 will be​

Answer 1

Let total value of all components be x.

We know that

Central angle = Component/ Sum of all components × 360

So

$20 = \frac{80}{x} \times 360$

$x = \frac{80 \times 360}{20}$

$x = 1440$

Hence

Central angle for value 156 is

$\frac{156}{1440} \times 360 = 39$