all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.
step-by-step explanation:
make sure you have version 2.50
try looking in the very back of the book : )
you can download it here
can you make your screen more see able?
then i might be able to .
hi im bob : l