## What is the formula to find the angle?

What Is Formula for Finding Angles?
Formula name Formula
sin, cos, and tan sin θ = opposite / hypotenuse cos θ = adjacent / hypotenuse tan θ = opposite / adjacent
Law of sines a/sin A = b/sin B = c/sin C Here, A, B, and C are the angles of a triangle and a, b, and c are their respective opposite sides.

## How do you find an angle using cosine?

Example
1. Step 1 The two sides we know are Adjacent (6,750) and Hypotenuse (8,100).
2. Step 2 SOHCAHTOA tells us we must use Cosine.
3. Step 3 Calculate Adjacent / Hypotenuse = 6,750/8,100 = 0.8333.
4. Step 4 Find the angle from your calculator using cos1 of 0.8333:

## How do you find the angle using sine cosine and tangent?

In any right angled triangle, for any angle:
1. The sine of the angle = the length of the opposite side. the length of the hypotenuse.
2. The cosine of the angle = the length of the adjacent side. the length of the hypotenuse.
3. The tangent of the angle = the length of the opposite side. the length of the adjacent side.

## Can you solve a triangle with 3 angles?

We must use The Law of Cosines first to find any one of the three angles, then we can use The Law of Sines (or use The Law of Cosines again) to find a second angle, and finally Angles of a Triangle to find the third angle.

## How do you find the angle of a right triangle?

How to find the angle of a right triangle
1. sin(α) = a / c so α = arcsin(a / c) (inverse sine)
2. cos(α) = b / c so α = arccos(b / c) (inverse cosine)
3. tan(α) = a / b so α = arctan(a / b) (inverse tangent)
4. cot(α) = b / a so α = arccot(b / a) (inverse cotangent)

## What is SSS math?

SSS (side-side-side) All three corresponding sides are congruent. SAS (side-angle-side) Two sides and the angle between them are congruent.