Question

Two lines are intersecting each other, and one of the angles is 84°. Find the other three angles.

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Answer 1

Step-by-step explanation:

Correct option is B)

Let AB and CD be two lines Intersecting at O, such that, ∠AOD=90

∘

Now, ∠AOD=∠COB=90

∘ (Vertically opposite angles)

⟹∠AOD+∠DOB=180

o (Angles on a straight line)

⟹90+∠DOB=180

o∠DOB=90

∘∠DOB=∠AOC=90

∘ (Vertically opposite angles)

Thus, all angles are 90

.

Answer 2

Answer:

The correct option is b.