Respuesta :
Answer:
75.36
Step-by-step explanation:
Given
3.14(a² + ab) ← substitute a = 4, b = 2 into the expression
= 3.14(4² + 4(2)) = 3.14(16 + 8) = 3.14 × 24 = 75.36
Answer:
75.36
Step-by-step explanation:
Given
3.14(a² + ab) ← substitute a = 4, b = 2 into the expression
= 3.14(4² + 4(2)) = 3.14(16 + 8) = 3.14 × 24 = 75.36