Question

Answer it please answer answer it​

Answer 1

Answer:

Here is your answer

Step-by-step explanation:

it will be solved by the concept of linear pairs of angles and from Vertically opposite angles

Answer 2

Answer:

angle AOD :angle BOD

= 4:5

= 4X +5X ( it is a linear pair on straight line)

= 4X +5X =180⁰

= 9X = 180⁰

= X = 180⁰/ 9

= X = 20⁰

SO , angle AOD = 4X = 4× 20 = 80⁰

BOD = 5X = 5×20 = 100⁰

TO PROVE

80⁰+100⁰ = 180⁰

180⁰=180⁰

HENCE PROVED

hope this helps you

plzz mark me as brainlist..