Question

If A is a number of degree and B is the number of grades of any angle, prove that: `B=A+(A/9)` ?

Answer 1

We know

`90^@=1" right angle"=100^g`

So

`A^@=(100/90*A)^g`

Hence by the given condition

`B=(100/90*A)=10/9A=A+(A/9)`