Question

To determine the value of an angle in a semi-circle . It is for my school project please help​

Answer 1

Answer:

value of an angle in a semi-circle = 90°

Step-by-step explanation:

Draw a circle First

Then take a point on circle boundary A and then draw a line passing through center O , till the boundary of circle other side B

this was you get diameter AB

Now take any one side of diameter

this Would be a Semicircle

now take any point C on this semicircle

join AC  & BC

Now using protector measure ∠ACB

and you will see that ∠ACB  = 90°

Now on semi circle take different point D , E  , F etc

and As done in last step

Measure ∠ADB  , ∠AEB & ∠AFB

and you will find each angle = 90°