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Dmitrij [34]
3 years ago
9

Determine a pair of angles (one positive and one negative) in degree measure coterminal to the angle 117°.​

Mathematics
2 answers:
andre [41]3 years ago
4 0

Answer:

Option B.

Step-by-step explanation:

When we have an angle A, in degrees, the coterminal angles are all the angles that can be written as:

B = A + n*360°

Where n is a positive or a negative integer (if n = 0, then B = A, which means that A is coterminal with itself, which is trivial).

Now we want to find two coterminal angles to 117°, such that one is positive and the other negative.

Then we can do:

for the positive one, use n = 1.

B = 117° + 1*360° = 477°

For the negative one, use n = -1

B = 117° - 1*360° = -243°

Then the two angles are 477° and -243°

The correct option is B.

kogti [31]3 years ago
3 0

Answer:

\Huge\boxed {B. 477°, -243°}

Step-by-step explanation:

Coterminal angles with 117° are:

  • 117° + 360°x, where x is an integer

When x = 1 and -1 we get:

  • 117° + 360° = 477° and 117° - 360° = -243°

It can be easily verified that all the other

pairs are incorrect

Correct choice is B

Hope it's helps you

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