Question

The supplement of an angle is four times the complement of the angle. Find the angle.
14. The ratio of an angle and its supplement is 5: 1. Find the angle.

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Answer 1

Answer:

Solution ❶

Given :-

The supplement of an angle is four times the complement of the angle.

To Find :-

What is the angle.

Solution :-

Let, the angle be x

Supplement angle = 180° - x

And, complement angle = 90° - x

According to the question,

⇒ (180° - x) = 4(90° - x)

⇒ 180° - x = 360° - 4x

⇒ - x + 4x = 360° - 180°

⇒ 3x = 180°

⇒ x = \sf\dfrac{\cancel{180°}}{\cancel{3}}

3

180°

➠ x = 60°

∴ The angle is 60° .

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Solution ❷

Given :-

The ratio of an angle and its supplement is 5:1.

To Find :-

What is the angle.

Solution :-

Let, the ratio be 5x : x

And, the sum of supplement angle is 180°

According to the question,

⇒ 5x + x = 180°

⇒ 6x = 180°

⇒ x = \sf\dfrac{\cancel{180°}}{\cancel{6}}

6

180°

➠ x = 30°

Hence, the required angles are,

➣ First angle = 5x = 5(30°) = 150°

➣ Second angle = x = 30°

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Answer 2

Answer:

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Step-by-step explanation:

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