Question

explain the line underlined with question mark!!
no. irrelevant answers!!

Answer 1

Hey mate listen it is given that Angle AOC+Angle COB=180°

Now Also given Angle AOC=Angle COB

So in place of Angle Angle COB we can right Angle AOC

SO Angle AOC+Angle AOC=180°
2 Angle AOC=180°

So Angle AOC=90°

HOPE YOU FIND MY ANSWER HELPFUL PLS MARK IT AS THE BRAINLIEST ANSWER IF POSSIBLE
THANK YOU

Answer 2

Hola User_____________

Here is Your Answer.....!!!!!!
______________________

☆Actually welcome to the concept of Lines and Angles....

☆Basically In the given figure ...we can see that the angles are the adjacent angles .... And they are such adjacent angles that they are forming a liner pair ...

☆Now we know that the pair of angles forming a linear pair has sum value as 180° Always .....thus we can say that

☆Angle AOC + Angle COB = 180°

but actually if we see ...they both are that right angles. ....

☆so we come to know that. ...
<AOC = < COB = .......GIVEN....

☆Now we know that both angles are 90° ...., Then we can substitute both the angles as one angles twice times ...so we get .....

<AOC + <AOC = 180° .......... (SINCE <AOC = <COB)

☆Thus ...we get

2<AOC = 180° .....

☆SO <AOC = 90°

__________________

Hope it helps u...☺