Sin 30 Formula

Sin 30 Formula

Sin 30 degrees has a value of 0.5. Sin (30° /180°), or sin (/6), represents sin 30 degrees in radians. The Sin 30 Formula degrees have a numeric value of 0.5. Sin 30 Formula degrees can also be written as the angle’s equal in radians (30 degrees) (0.52359. . .). Angle 30° is between 0° and 90° for sin 30 degrees (First Quadrant). Sin 30° value = 1/2 or 0.5 because the sine function is positive in the first quadrant. Sin 30 Formula can be expressed as sin(30° + n 360°) since the Sin 30 Formula is a periodic function. Sin 30 Formula equates to sin 390°, sin 750°, and so on as sine is an odd function, sin(-30°) equals -sin(30°).


Trigonometry is the branch of Mathematics that deals with particular angles’ functions and how to use those functions in calculations. There are six common trigonometric functions for an angle. Sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant are their respective names and acronyms (csc). Trigonometry is crucial for everyday living as well as for getting good grades in Mathematics. The need to calculate angles and distances in disciplines like astronomy, map making, surveying, and artillery range finding led to the development of trigonometry. Plane trigonometry deals with issues involving angles and lengths in a single plane. The two most significant operations in trigonometry are reciprocal and ratio. Only right-angled triangles are used in the calculation of trigonometric ratios. The three primary pillars on which the entire concept of trigonometry is based are sine, cosine, and tangent. One of those crucial trigonometric ratios is sin. Sin (30 degrees) is equal to half (1/2).

Trigonometric Ratios

The unknown sides or angles of a triangle, which cannot be determined from the basic properties of triangles, are estimated using trigonometric ratios. The only exception to this is right-angled triangles when the side ratios are stated as a set of six trigonometric ratios. They are actually the ratio of the sides of a right-angled triangle, and their names are Sin, Cos, Tan, Cosec, Sec, and Cot.

Consider the triangle ABC, where the angle C is 90 degrees. The hypotenuse is usually the side AB, which is the longest side and opposite the right angle. Therefore, in this particular example, the side AB designated as c is the hypotenuse. Side CA is perpendicular to side CB, which is the base.

Solved Example

The solved examples on the Sin 30 Formula from the chapter were thoroughly completed in compliance with all CBSE regulations by Extramarks’ own subject-matter experts. The best grades on the annual examination can be simply attained by any student who is thorough with all the concepts from the Mathematics textbook and quite knowledgeable with all the Sin 30 Formula solved examples provided by the subject-matter-experts at the Extramarks’ website.  With the help of these Sin 30 Formula solved examples, students may rapidly understand the types of problems that may be asked in the examination from this chapter and learn the chapter’s weight in terms of overall grade marks. As a result, students can effectively prepare for the final exam and earn better grades. One can study the Sin 30 Formula on the Extramarks website or mobile application.

Maths Related Formulas
Summation Formula Sin To Cos Formula
Area Of An Octagon Formula Sine Half Angle Formula
Arithmetic Sequence Formula Unit Circle Formula
Celsius Formula Consecutive Integers Formula
Complex Number Formula Cot Half Angle Formula
Distributive Property Formula Cot Tan Formula
Double Angle Formulas Difference Of Squares Formula
Hexagon Formula Hexagonal Pyramid Formula
Hyperbolic Function Formula Regression Sum Of Squares Formula
Pyramid Formula X And Y Intercept Formula

FAQs (Frequently Asked Questions)

1. Which forms of trigonometry are there?

The sine, cosine, and tangent are the three fundamental trigonometric operations. The cotangent, secant, and cosecant functions are derived from these three basic functions.

2. In trigonometry, what is the opposite?

A right triangle’s hypotenuse is its longest side, its “opposite” side is the one that faces a certain angle, and its “adjacent” side is the one that faces the angle in question.