Question

Angles of the square are donoted as follow:Which of the following angles are adjacent angles?

• A. $\angle 1\&\angle 2$
• B. $\angle 1\&\angle 4$
• C. $\angle 2\&\angle 4$
• D. $\angle 3\&\angle 2$

Answer 1

Answer: (A), (B), (D)

$\angle 3\&\angle 2$

We know that an angle is formed between two arms or rays or sides.

Angles having common sides are known as adjacent angles.

In the figure, $\angle 1\&\angle 2$ have one common side i.e. $AB$, hence $\angle 1\&\angle 2$ are adjacent angles.

$\angle 1\&\angle 4$ have one common side i.e. $AD$, hence $\angle 1\&\angle 4$ are adjacent angles.

$\angle 3\&\angle 2$ have one common side i.e. $BC$, hence $\angle 3\&\angle 2$ are adjacent angles.

$\angle 2\&\angle 4$ do have any common side, hence $\angle 2\&\angle 4$ are not adjacent angles.