Answer:
sinR = 0.7184
Step-by-step explanation:
Pythagorean Theorem: a² + b² = c²
sin∅ = opposite/hypotenuse
Step 1: Find missing leg length
16² + b² = 23²
b² = 23² - 16²
b = √273
Step 2: Find sinR
sinR = √273/23
sinR = 0.718379
