# What are specific angles?

## What are specific angles?

Trigonometric ratios of some specific angle are defined as the ratio of the sides of a right-angle triangle with respect to any of its acute angles. Trigonometric ratios of some specific angle include 0°, 30°, 45°, 60° and 90°.

### What numbers are special angles?

There is a simple way to remember the sine, cosine, and tangent of special trigonometry angles. The special trig angles are 0º, 30º, 45º, 60º, and 90º.

#### Is 135 a special angle?

By combining them you can construct other angles….Adding angles.

To make Combine angles
75° 30° + 45°
105° 45° + 60°
120° 30° + 90° or 60° + 60°
135° 90° + 45°

What are special angle pairs?

Special names are given to pairs of angles whose sums equal either 90 or 180 degrees. A pair of angles whose sum is 90 degrees are called complementary angles. Each angle is the other angle’s complement.

Is 270 degrees a special angle?

Angles such as 270 degrees which are more than 180 but less than 360 degrees are called reflex angles.

## Is 30 degree a special angle?

Because it is a special triangle, it also has side length values which are always in a consistent relationship with one another. And so on. The side opposite the 30° angle is always the smallest, because 30 degrees is the smallest angle.

### What degree is special angle?

– A 60 degree angle is special since it is found in every equilateral triangle.

#### What is a 105 degree angle called?

obtuse angle-an angle between 90 and 180 degrees.

What are the 4 special angles?

We will cover each pair in order.

• Complementary Angles. Two angles are called “Complementary Angles” if their degrees add to equal exactly 90°.
• Supplementary Angles.
• Linear Pair Angles.
• Vertical Angles.
• Complementary Angles.
• Supplementary Angles.
• Linear Pairs.

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