Answer:
The cosine of an angle is the ratio of the length of the leg adjacent to the angle to the length of the hypotenuse.
Step-by-step explanation:
- In a right angled triangle, the cosine of an angle is the length of the adjacent side divided by the length of the hypotenuse.
- Also it is the sine of the complementary angle.
- The abbreviation is cos
- The longest side of the triangle is called the hypotenuse,
- The side opposite the angle theta is called the opposite side,
- The third side is called the adjacent side.
- Therefore,

Answer:
9
Step-by-step explanation:

Answer:
Hello! answer: x = 19
Step-by-step explanation:
This is a supplementary angle! So it will add up to 180 degrees 180 - 123 = 57 so we know something multiplied by 3 will equal 57 and 19 × 3 = 57 so x = 19 Hope this is a good explanation!
Answer:
52.19612
Step-by-step explanation:
hope this helps
Answer:
20
Step-by-step explanation:
ii) 7, 12, 17, 22..
The difference between the i) pair is 3, and the ii) pair is 5.
So ,
17 + 3 = 20.
22 + 5 = 27.
Therefore the series is 8, 7, 11, 12, 14, 17, 17, 22, 20, 27.