Question

Find the unknown angles.
In the given fig, l ∥ m and t is a transversal.
Find the value of angle a

Answer 1

Answer:

60° (vertically opposite angle)

Step-by-step explanation:

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Answer 2

Given :

• l || m and t is a transversal

To find :

• The value of a

According to the question,

⇒ ∠a = 60°

Reason :- Vertically Opposite Angle

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More to know :

Transversal :-

A straight line which cuts two or more straight line at a point is called a transveral.

Adjacent Angle :-

Two angles are called adjacent angles, if

• they have the same vertex
• they have a common arm &
• their non - common arms are on either side of the common arm.

Acute angle :-

An angle whose measure is more than 0° but less than 90° is called an acute angle.

Right angle :-

An angle whose measure is 90° is called a right angle.

Obtuse angle :-

An angle whose measure is more than 90° but less than 180° is called an obtuse angle.