How does 1 degree equals to how many minutes and seconds?

A degree is traditionally divided into 60 parts called "minutes", each minute is divided into 60 parts called "seconds". To distinguish from the time units, which are of course unrelated, you can also call those divisions arc-minutes, and arc-seconds. It is, however, also quite common to just specificy fractions of a degree in decimals, as in, the Earth's axis is tilted about 23.5 degrees.

And we can also say this in Mathematical terms that:

1 degree=60 minutes

We also know that :

1 minute=60 seconds

it means:

1 degree = (60*60)=3600 seconds

It means that minutes are the smaller unit for measurements of angle in "D.M.S system" than the degree and seconds are definitely even smaller than minutes.

D.M.S system = Degree, minutes and seconds system