Trig Missing angles and sides

Tangent (tan) is the ratio of the length of the opposite side to the length of the adjacent side.

To find the angle, use the inverse tangent function: angle = tan^-1(opposite/adjacent).

The length of the opposite side = hypotenuse × sin(angle).

The length of the adjacent side = hypotenuse × cos(angle).

The angles in a right triangle are related to the ratios of the lengths of the sides.

Look at the hundredths place; if it's 5 or more, round up the tenths place by one, otherwise keep it the same.

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides: a² + b² = c².

Sine (sin) is the ratio of the length of the opposite side to the length of the hypotenuse.

Cosine (cos) is the ratio of the length of the adjacent side to the length of the hypotenuse.

Inverse trigonometric functions are used to find angles when the lengths of the sides are known.