WILL GIVE BRAINLIST PLEASE HELP im very confused

Answer:
∠C=24°
Step-by-step explanation:
Given that,
∠A=66°
∠B=90°
We know,
the sum of 3 angles of a triangle is 180°
so,∠A+∠B+∠C=180°
=>∠C=180°-∠A-∠B
=>∠C=180° -66°-90°
=>∠C=24°
please mark as brainliest