Step-by-step explanation:
Diameter =12 ft
i.e 2r=12
or, r=12/2 =6ft
SA =3πr²
=3(6)²π ft²
=3×36π ft²
=108π ft²
Answer: 142°
Step-by-step explanation:
∡BAC= 38°
∡BAN= 180°-38° = 142°
Answer:
No its not a proportion, the numerators can't be divided evenly
Step-by-step explanation: