Is the sentence true or false?

Two angles are supplementary angles if their sum is π

Find the supplementary angle of 3π /16 in radian measure

Find the supplementary angle of π /4 in radian measure

 What must the sum of two angles be, given that the angles are supplementary to each other?

  Is the sentence true or false? Two angles are supplementary angles if their sum is 2π 

Is the sentence true or false? To find an angle’s supplementary angle, subtract it from  π/2

 Find the supplementary angle of π/3 in radian measure

Find the supplementary angle of π/8 in radian measure

 Find the supplementary angle of π /7 in radian measure

Find the supplementary angle of π/10 i n radian measure