Question

please help me again . please ​

Answer 1

Answer:

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Answer 2

Answer:

$\huge\red{\boxed{\sf AnSwEr}}$

Sum of all angles in a circle always 360°

Hence ,

∠AOC + ∠BOC + ∠DOB + ∠AOD = 360°

→ x + y + w + z = 360°

→ x + y + x + y = 360°

Given that

x + y = w + z

Put the value we get

→ 2w + 2z = 360°

→ 2(w + z) = 360°

w + z = 180° -------------- (linear pair)

or ,

∠BOD + ∠AOD = 180°

★If the sum of two adjacent angles is 180°, then the non-common arms of the angles form a line

Hence AOB is a line.★