Question

I’ll give brainliest:(
Write a paragraph to proof to show that if <1 and <2 are congruent supplementary angles, then <1 and <2 are right angles

Answer 1

Answer:

see below

Step-by-step explanation:

we know that

$\angle 1 =\angle 2$

and that

$\angle 1 +\angle 2 = 180$

so we substitute angle 2 by angle 1

$\angle 1 +\angle 1 = 180\\\\2\angle 1=180\\\\\angle 1 = 90$

so there we have it

$\angle 1 = 90 =\angle 2$