Question

I dont understand. im better at history

Answer 1

The correct option is (b) that is

`\bf \implies{\angle{JND} = 57 \degree}`

Explanation:

Given :

`\bf \longrightarrow{\angle{BNL} = 33 \degree}`

To Find:

`\bf \longrightarrow{\angle{JND} = \: ?}`

Solution:

`\bf \longrightarrow \: \: \: \angle{BNL} = \angle{DNS} \: \\ \: \: \: \bf [Verically \: Opposite \: Angle]`

We know that,

• Two angles are called a pair of vertically opposite angles, if their arms form two pairs of opposite rays.

`\bf \therefore\angle{DNS } = 33 \degree`

According to the question,

`\bf \longrightarrow \angle{JND} + \angle{ DNS} = 90 \degree \\ \bf \: \: \: \: \: \: \: \: \: [form \: a \: right \: angle]`

`\bf \longrightarrow \angle{JND} +33 \degree= 90 \degree`

`\bf \longrightarrow \angle{JND}= 90 \degree - 33 \degree`

`\bf \longrightarrow \angle{JND}= 57 \degree`

So, the measure of angle JND is 57°.