Question

Two alternate angles in a parallel lines are (2a + 20)°and (4a-20)°Find the values of the angles.​

Answer 1

Answer:

60

Step-by-step explanation:

ANGLE 1 = ANGLE 2......... ALTERNATE ANGLES

SO,

2A + 20 =4A - 20

20 + 20= 4A - 2A

40 = 2A

A= 40/2

A= 20

ANGLE 1= 2A + 20=  40 + 20=  60

ANGLE 2= 4A- 20 = 4xA - 20= 80 - 20=  60

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