Question

urgent please answer tomorrow is my exam

Answer 1

<2=<3 ....equation 1
while <1 +<2=180 equation 2
solve simultaneously

find x and y
as <3 +<4 is 180 plug x and y values
3=5

Answer 2

<2=<3 ....equation 1

while <1 +<2=180 equation 2

solve simultaneously  

find x and y

as <3 +<4 is 180 plug x and y values

3=5