Mr Daniels Maths
Cosine Rule

Set 1

Set 2

Set 3

Q1) Calculate the missing length x of the triangle to 3sf. [ 7.68m]

Q1) Calculate the missing angle X of the triangle to 3sf. [ 75.0 °]

Q1) Calculate the angle(X) of the triangle to 3sf. [ 55.7° ]

Q2) Calculate the missing length x of the triangle to 3sf. [ 5.91mm]

Q2) Calculate the missing angle X of the triangle to 3sf. [ 25.0 °]

Q2) Calculate the angle(X) of the triangle to 3sf. [ 142° ]

Q3) Calculate the missing length x of the triangle to 3sf. [ 5.82m]

Q3) Calculate the missing angle X of the triangle to 3sf. [ 20.0 °]

Q3) Calculate the angle(X) of the triangle to 3sf. [ 128° ]

Q4) Calculate the missing length x of the triangle to 3sf. [ 5.07m]

Q4) Calculate the missing angle X of the triangle to 3sf. [ 80.0 °]

Q4) Calculate the missing angle ? of the triangle to 3sf. [ 7.50]

Q5) Calculate the missing length x of the triangle to 3sf. [ 4.87cm]

Q5) Calculate the missing angle X of the triangle to 3sf. [ 20.0 °]

Q5) Calculate the missing angle ? of the triangle to 3sf. [ 143]