Question

Any help is appreciated!

Answer 1

∠a=40°, ∠b=50°, ∠c=115°.

Explanation:

∵The opposite vertex angles are equal,

∴∠a=40°.

∴∠b=90°-∠a=90°-40°=50°.

∠c=180°-65°=115°.

Answer 2

Answers are
a= 40
b= 50
c=115

a = 40 because it’s a vertical angle to 40, congruent / the same.
b= 50 because the right triangle will equal 180 degrees. 180 - 90 - 40 = 50.
c = 115 because the supplementary angle shown will equal 180 degrees. 180-65 = 115.