jessica94866
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  • 01-06-2019
  • Mathematics
contestada

Find the value of x.

pls help! tysm

Find the value of x pls help tysm class=

Respuesta :

Аноним Аноним
  • 01-06-2019

Answer:

x = 30.

Step-by-step explanation:

The angle next to the 60 degree angle = 180 - 60 = 120 degrees (adjacent angles are supplementary).

Let the angle  just above 3x be y.  The sum of 3x and y = 120 degrees (as opposite angles of a parallelogram are equal).

We have the following equations.

3x + y = 120............(1)

2x + 90 + y = 180

2x + y = 90.............(2)

Subtracting, (1) - (2):

x = 30.

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