Answer :
Answer:
1. Cos θ = 0.89
θ = 27.13 degrees
2. Cos θ = 0.729
θ = 43.20 degrees
Explanation:Given:
1. Cos θ = 0.89
θ = arccos(0.89)
= 27.13 degrees
2. Cos θ = 0.729
θ = arccos(0.729)
= 43.20 degrees