Question

calcular a area e o perimetro das alternativas c) e d)

Answer 1

c
trapézio

[ ( B +b)/2] * h
[ ( 20 + 12)/2 ] * 4=
[ (32/2)] * 4 =
16 * 4 = 64 cm²****

d
triângulo
( b * h)/2
( 8 * 6)/2 = 48/2 = 24 cm²