Perform the basic conversion. Give exact answers

i)0 degrees = ____ rad
ii)90 degrees = _____ rad
iii)180 degrees = _____ rad
iv)30 degrees = _____ rad
v)45 degrees = _____ rad
vii)60 degrees = ______ rad
viii)135 degrees = ______ rad
viiii) 120 degrees = ______ rad

to convert degrees to rad, multiply by pi and divide by 180.

To perform the basic conversion from degrees to radians, you need to use the conversion factor: 1 radian = (180/π) degrees.

i) To convert 0 degrees to radians, we use the formula: (0 degrees) × (π/180) = 0 radians.
ii) For 90 degrees, we have: (90 degrees) × (π/180) = (π/2) radians, which is approximately 1.571 radians.
iii) To convert 180 degrees, we get: (180 degrees) × (π/180) = π radians, approximately 3.142 radians.
iv) For 30 degrees: (30 degrees) × (π/180) = (π/6) radians, which is approximately 0.524 radians.
v) For 45 degrees: (45 degrees) × (π/180) = (π/4) radians, approximately 0.785 radians.
vii) For 60 degrees: (60 degrees) × (π/180) = (π/3) radians, approximately 1.047 radians.
viii) For 135 degrees: (135 degrees) × (π/180) = (3π/4) radians, approximately 2.356 radians.
viiii) For 120 degrees: (120 degrees) × (π/180) = (2π/3) radians, approximately 2.094 radians.

Therefore, the exact answers are:
i) 0 degrees = 0 radians
ii) 90 degrees = π/2 radians
iii) 180 degrees = π radians
iv) 30 degrees = π/6 radians
v) 45 degrees = π/4 radians
vii) 60 degrees = π/3 radians
viii) 135 degrees = 3π/4 radians
viiii) 120 degrees = 2π/3 radians