Question

How to find x and Angle ROS

Answer 1

21+45+70=136
136+(2+x)=180
First subtract 136 from both sides
(2+x)=44=M<ROS
Subtract 2 from both sides
x=42

Answer 2

Angle poq +qor + +ros+ sot =180 (since pot is A straight ) Given those angles we can substitute it in the above equation we have found. Therefore the equation now becomes 21 + 45 + 70+2 + x= 180. So now the equation turns 138+x =180. X= 180-138. X=42. Angle ros = 44