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PLEASE HELP I WILL MARK BRAINLIEST!!
4. what is the value of x?
A. 24***
B. 9
C. 21
D. 14
5. what is the measure of angle 1?
A. 45 degrees
B. 60 degrees
C. 120 degrees***
D. 125 degrees
The ones that are marked *** are my answer. please correct me if i am wrong

PLEASE HELP I WILL MARK BRAINLIEST 4 what is the value of x A 24 B 9 C 21 D 14 5 what is the measure of angle 1 A 45 degrees B 60 degrees C 120 degrees D 125 de class=

Respuesta :

Answer:

∠1 = 120°

Step-by-step explanation:

Since the 2 lines are parallel

Angles 5x + 15 and 3x - 3 are same- side interior angles and are supplementary, thus

5x + 15 + 3x - 3 = 180, that is

8x + 12 = 180 ( subtract 12 from both sides )

8x = 168 ( divide both sides by 8 )

x = 21

Hence

∠1 = 5x + 15 ( corresponding angles )

    = (5 × 21) + 15 = 105 + 15 = 120°

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