Unlabelled Protractor

Transcript

Unlabelled Protractor To find degree, we divided the circle into 360 parts Now, to find any angle, we use Protractor This protractor doesn’t have any labels, can you label it? Labelling unlabeled protractor We start fixed vertex at center And fixed starting ray We notice that this is half circle i.e. 180° And the big lines are (180°)/18 = 10° And the medium line is 5° Small line is 1°