Question

Can someone help me 1 or 4​

Answer 1

No. 1: y = 90 (vertically opposite angles)

Also, x = 9. To find x, we'll have:

`3x + 7 + 56 + 90 = 180 \\ (sum \: of \: angles \: on \: a \: straight \: line) \\ 3x + 153 = 180 \\ 3x = 180 - 153 \\ 3x = 27 \\ (3x)/(3) = (27)/(3) \\ x = 9.`

No. 4: y = 62 (vertically opposite angles)

Also, x = 12. To find x, we have:

`5x = 60 \\ (5x)/(5) = (60)/(5) \\ x = 12.`