Which angles are supplementary
to each other? Select all that
apply.

only ∠4 and ∠3

Step-by-step explanation:

Supplementary angles are angles that add up to 180° or form a straight line. Therefore, angles 4 and 3 are the only angles that form a straight line, making them the correct answer.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

 ~ ren

4 and 3

Step-by-step explanation:

sum of supplementary angles = 180

angles 4 and 5

angles 4 and 3

angles 1,2,5

angles 3,2,1

17   x 256=4352

sorry if this is wrong, i'm new.

step-by-step explanation:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc