Mr Daniels Maths
Cosine Rule

Set 1

Set 2

Set 3

Q1) Calculate the missing length x of the triangle to 3sf. [ 5.86mm]

Q1) Calculate the missing angle X of the triangle to 3sf. [ 45.0 °]

Q1) Calculate the missing angle ? of the triangle to 3sf. [ 150]

Q2) Calculate the missing length x of the triangle to 3sf. [ 9.85cm]

Q2) Calculate the missing angle X of the triangle to 3sf. [ 90.0 °]

Q2) Calculate the angle(X) of the triangle to 3sf. [ 39.6° ]

Q3) Calculate the missing length x of the triangle to 3sf. [ 8.72m]

Q3) Calculate the missing angle X of the triangle to 3sf. [ 70.0 °]

Q3) Calculate the missing length x of the triangle to 3sf. [ 39.1mm]

Q4) Calculate the missing length x of the triangle to 3sf. [ 7.07m]

Q4) Calculate the missing angle X of the triangle to 3sf. [ 25.0 °]

Q4) Calculate the missing angle ? of the triangle to 3sf. [ 37.5]

Q5) Calculate the missing length x of the triangle to 3sf. [ 2.12mm]

Q5) Calculate the missing angle X of the triangle to 3sf. [ 80.0 °]

Q5) Calculate the missing angle ? of the triangle to 3sf. [ 135]