In the figure below, x = 30∘. The value of (6y – 3x) is ___.
Given, x = 30∘,
So, 2x = 60∘
Also, 2x + 3y = 180∘ (linear pair)
Replacing x in the above equation,
60∘ + 3y = 180∘
3y = 120∘
y = 40∘
The value of 6y−3x
= 6(40)−3(30)
= 240∘ −90∘
= 150∘