Question

can someone help me on this please

Answer 1

we know:

<1 + <4 = 180 because they're on a straight line

Answer 2

we also know:

<1 + <2 + <3 = 180 since they're the angles of a triangle

Answer 3

yeah i got 48 but its not right though

Answer 4

we can write these equations:

2x + <1 = 180
(4/3)x + 20 + <1 = 180

Answer 5

we can then subtract these to get:

(4/3)x - 2x + 20 = 0

solve for x

Answer 6

30

Answer 7

awesome, that's your answer

Answer 8

thanks