Question

If shown, AB and CD are straight lines. Find x in each case

Answer 1

Answer:

60

Step-by-step explanation:

$x \: + \: y \: + 30 \: + 30 \: = 180 \: \: \: \: \: \: \: \: \: (1)\\ \\ y + 30 = 90 \\ y = 90 - 30 \\ y = 60 \\ \\ (1) \: \: \: \: \: \: \: \: \: \: \: \: \: x + 60 + 30 + 30 = 180 \\ x = 180 - 120 \\ x = 60$