Question

Can somebody please help me with question number 1

Answer 1

1a: 6.283

b: 51.313

c: 285.1

Explanation:

Area of a sector = (angle/360)πr²

1a

Area=(45/360)π(4²)=6.283

b

Area=(120/360)π(7²)=51.313

c

Area=(270/360)π(11²)=285.1