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Mnenie [13.5K]
3 years ago
8

Angles X and Y are supplementary. Angle X is 3 times the measure of angle Y. What is the measure of angle X?

Mathematics
2 answers:
Rudiy273 years ago
8 0

Answer:

the answer is 135

Step-by-step explanation:

never [62]3 years ago
5 0

Answer:

∠ Y = 45°, ∠ X = 135°

Step-by-step explanation:

Since the 2 angles are supplementary, then

X + Y = 180 ← substitute X = 3Y

3Y + Y = 180, that is

4Y = 180 ( divide both sides by 4 )

Y = 45

and

X + Y = 180, so

X + 45 = 180 ( subtract 45 from both sides )

X = 135

Thus

∠ X = 135° and ∠ Y = 45°

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