# How do you explain the Law of Sines?

## How do you explain the Law of Sines?

The Law of Sines is the relationship between the sides and angles of non-right (oblique) triangles . Simply, it states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all sides and angles in a given triangle.

## What does solve the triangle mean?

To “solve a right triangle” means to find all of the missing parts of a triangle with a 90 degree angle in it. In one case, you’ll be given a side and an angle. In another case, you’ll be given two sides.

What is the importance of Law of Sines?

This law is useful for finding a missing angle when given an angle and two sides, or for finding a missing side when given two angles and one side.

### What do u need to solve a triangle?

Given almost any three of them—three sides, two sides and an angle, or one side and two angles—you can find the other three values. This is called solving the triangle, and you can do it with any triangle, not just a right triangle. For all of this, you need only two tools, the Law of Sines and the Law of Cosines.

### Can you site real-life application of law of sines describe how you can you apply the law of sines in that situation?

You can use the Law of Sines to solve real-life problems involving oblique triangles. For instance, in Exercise 44 on page 438, you can use the Law of Sines to determine the length of the shadow of the Leaning Tower of Pisa.

What is law of cosines used for?

The Law of Cosines is used to find the remaining parts of an oblique (non-right) triangle when either the lengths of two sides and the measure of the included angle is known (SAS) or the lengths of the three sides (SSS) are known.

#### When to use law of sines?

The Law of Sines can be used to solve oblique triangles,which are non-right triangles.

• According to the Law of Sines,the ratio of the measurement of one of the angles to the length of its opposite side equals the other two ratios of angle
• There are three possible cases: ASA,AAS,SSA.
• #### How do you calculate sin of a triangle?

Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: For a given angle θ each ratio stays the same. no matter how big or small the triangle is. To calculate them: Divide the length of one side by another side.

When to use law of cosines?

When to Use. The Law of Cosines is useful for finding: the third side of a triangle when we know two sides and the angle between them (like the example above) the angles of a triangle when we know all three sides (as in the following example)

## How do you calculate sine angle?

In mathematics, you can find the sine of an angle by dividing the length of the side opposite the angle by the length of the hypotenuse. You can save time and frustration by using Excel functions to make this calculation.

13/07/2020