Question

Please help, I'm in a test! Question is in the image attached! if you think you could help me out more, let me know and I'll post more questions like this! ​

Answer 1

180%

Explanation:

took the test got it right on the test

Answer 2

180° (in place of blank)

Explanation:

GIVEN :-

• ∠D = 127°
• ∠A = 75°

PROCEDURE :-

∠C & ∠D are linear pair. (∵ They lie on same line)

⇒ ∠C + ∠D = 180°

⇒ ∠C = 180° - 127°

In a triangle , sum of its all interior angles equals to 180° (which is also known as "Angle Sum Property). So,

∠A + ∠B + ∠C = 180°

⇒ 75° + ∠B + (180° - 127°) = 180°

⇒ ∠B = 180° - 75° - (180° - 127°)