Respuesta :

A = [tex] \frac{a+b}{2} (h)[/tex]
A = [tex] \frac{3.8+12}{2} (4.6) [/tex]
A ≈ 36.34

The area is approximately 36.34 cm²
A = 1/2(3.8 + 12)(4.6)
A = 36.34

answer
36.34 cm^2