Question

2.
In the following Figure, it being given that angle

1 = 55°, find all other angles
​

Answer 1

Answer:

It has been given that ∠1 = 55°.

∴ ∠3 = ∠1 = 55°    [vertically opposite angles are equal]

We know that linear pairs form 180°.

∠1 and ∠2 form a linear pair as

they are two angles on the same line.

∴ ∠1 + ∠2 = 180°

⇒ 55° + ∠2 = 180°

⇒ ∠2 = 180° - 55° = 125°

∴ ∠4 = ∠2 = 125°      [vertically opposite angles are equal]

∠1 = 55°

∠2 = 125°

∠3 = 55°

∠4 = 125°

Answer 2

Answer:

refer to the attachment

Step-by-step explanation:

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