Respuesta :

Answer:

A = 13 1/2 sq units

Step-by-step explanation:

A(trapezoid) = 1/2·h·(b₁ + b₂)

b₁ = one of the bases

b₂ = the other base

the bases are the sides parallel to each other

the height is the number of units connecting the bases

A = 1/2(3)(3+6)

A = 3/2(9)

A = 27/2 or 13 1/2 sq units

18cm^2. By using the formula 0.5(a+b) h