Question

find the angel which is equal to its supplement​

Answer 1

Answer:

1st

i hope it is right to you

Answer 2

Answer:

90°

Step-by-step explanation:

Angles which sum up to 180 are called supplementary angles, in the question,

Let the two angles be x and y

Then ---> x + y = 180

But, x = y  [Cause the question says which angle is equal to its supplement]

=> x + x = 180

=> 2x = 180

=> x = 180/2

=> x = 90 = y