Question

give explanation and then. answer ​

Answer 1

Step-by-step explanation:

SINCE AB || CD SO angle A and angle C are supplementary.

so , 3x+15 +2x+45=180°

5x + 60=180°

. 5x = 180°- 60°

5x = 120°

x = 120°/5

x= 24°

Answer 2

Answer:

Sum of the supplementary angle=180°.

So,3x+15+2x+45=180°

5x = 60 =180°

5x = 180° - 60

5x = 120°

x= 120

5

x = 24°

So the correct answer is B

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