Which angle between 0° and 360° has the same cosine as the angle 55°?

enter your answer as an integer

The answer to your question is: 305°

Step-by-step explanation:

Data

angle between 0° and 360°

cosine 55°

Process

Remember the sign of cosine in the 4 quadrangles

                             Sign

1st quadrangle        +

2nd  quadrangle     -

3rd                           -

4th quadrangle        +

55° is in the 1st quadrangle, then we need to look for an angle in the 4th quadrangle.

In the 4th quadrangle the angle will be 360 - Ф.

Finally           360° - 55° = 305°

cosine 55° = 0.57

cosine 305° = 0.57

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

step-by-step explanation: