Question

find the supplementary angle of 40°​

Answer 1

supplementary angle of 40⁰

= 180⁰-40⁰

= 140⁰.

please follow it

Answer 2

We know, supplementary angle = sum of two angle give 180 degree.

Let the second answer be x.

So, 40º+x= 180º

=> x = 180º-40º = 140º

so, the supplementary angle of 40 degree = 140 degree.