we know that
using the approximation
π≈3.14 radians
and
π/2≈1.57 radians
Since 1.57 < 2.2 <3.14
we can write this inequality like this:
π/2 <2.2 < π.
Since we know that π radians is equal to 180° and π/2 radians is equal to 90°,
2.2 radians lies in the second quadrant.
