Answer:
Given: PQR with sides PQ=7, QR=5, and ∠P=?
Step 1: Use the Law of Sines:
sin(∠P)/7 = sin(∠Q)/5
Step 2: Solve for ∠P. First, multiply both sides of the equation by 7 to get:
sin(∠P) = 7sin(∠Q)/5
Step 3: Use the inverse sine function, represented as sin⁻¹, to find ∠P:
∠P = sin⁻¹(7sin(∠Q)/5).
Explanation: