Trigonometric Values of 45 Degree
Trigonometric values (sine, cosine, tangent, etc.) of a 45-degree angle are special because they have exact values that can be expressed without decimals.
Below are the main trigonometric values for a 45-degree angle:
- Sine (sin): sin(45°) = √2 / 2 = 1/√2
- Cosine (cos): cos(45°) = √2 / 2 = 1/√2
- Tangent (tan): tan(45°) = 1
There are other trigonometric functions like cotangent (cot), secant (sec), and cosecant (CSC), but these can be derived from the sine and cosine values using trigonometric identities.
Trignometric Fucntion |
Value at 45 Degree |
---|---|
Sine (45°) |
√2 / 2 = 1/√2 |
Cosine (45°) |
√2 / 2 = 1/√2 |
Tangent (45°) |
1 |
Cosec (45°) |
√2 |
Sec (45°) |
√2 |
Cot (45°) |
1 |
45 Degree Angle: Construction and Examples
45-degree angle is a fundamental concept in geometry and trigonometry. An angle is a form of geometrical shape constructed by joining two rays to each other at their endpoints. The two lines joined together are called the arms of the angle.
A 45-degree angle is exactly half of a right angle, which measures 90 degrees. Two 45-degree angles placed together form a right angle. In degrees, a 45-degree angle is 45/360 of a complete circle since its measure is between 0 and 90 degrees, a 45-degree angle is classified as an acute angle.
In this article, we will learn about, a 45-degree angle, how to draw a 45-degree angle using a compass and protractor, the properties of a 45-degree angle trigonometric values of a 45-degree angle and others in detail.
Table of Content
- What is the 45-degree angle?
- How to draw 45 degrees Angle using Compass
- How to draw 45 degrees Angle using Protractor
- Properties of 45-degree Angle
- Trigonometric values of 45 degree
- Solved examples on 45-degree Angle
- 45 degree Angle – FAQs
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