Question

Which angle pairs are supplementary? Check all that apply

Answer 1

3,4
4,5
3,6
these are all supplementary

Answer 2

b) ∠4 and ∠3

c) ∠4 and ∠5

e) ∠3 and ∠6

Explanation:

Supplementary angles: If the two angles are supplementary, then the angles add upto 180 degrees.

We need to find which pairs add upto 180 degrees.

From the given figure, ∠4 + ∠3 = 180°

ii) ∠5 + ∠6 = 180°

iii) ∠4 + ∠5 = 180°

iv) ∠3 + ∠6 = 180°

v) ∠7 + ∠8 = 180°

So, the following pairs are supplementary.

b) ∠4 and ∠3

c) ∠4 and ∠5

e) ∠3 and ∠6