supplementary angles

complementary angles

The cosine (cos) of an angle in a right triangle is a ratio. It is the length of the adjacent leg (adj) divided by the length of the hypotenuse (hyp). The adjacent leg is the leg next to the specified angle and the hypotenuse is the side across from the right angle.

The cosine (cos) of an angle in a right triangle is a ratio. It is the length of the adjacent leg (adj) divided by the length of the hypotenuse (hyp). The adjacent leg is the leg next to the specified angle and the hypotenuse is the side across from the right angle.  

All trigonometric ratios are positive in the first quadrant and secant changes to cosecant when it is 90° or 270°

The cosine (cos) of an angle in a right triangle is a ratio. It is the length of the adjacent leg (adj) divided by the length of the hypotenuse (hyp). The adjacent leg is the leg next to the specified angle and the hypotenuse is the side across from the right angle.

All trigonometric ratios are positive in the first quadrant and tan changes to cot when it is 90° or 270°.

Tan 75° + Cot 65° = Tan (90° – 15°) + Cot (90° – 25°)

The sine (sin) of an angle in a right triangle is a ratio. It is the length of the opposite leg (opp) divided by the length of the hypotenuse (hyp). The opposite leg is the side across from the specified angle and the hypotenuse is the side across from the right angle.

The cosine (cos) of an angle in a right triangle is a ratio. It is the length of the adjacent leg (adj) divided by the length of the hypotenuse (hyp). The adjacent leg is the leg next to the specified angle and the hypotenuse is the side across from the right angle.