Question

Determine a area de cada figura a seguir : a), b), c), d)

Answer 1

a) 18cm² (B+b)*h/2 = (7 + 5) * 3 / 2
b) 10cm² (B+b)*h/2 = (7 + 3) * 2 / 2
c) 10,5cm² (D*d)/2 = (7 * 3) / 2
d)10 cm² (D*d)/2 = (5 * 4) / 2

Espero ter ajudado :)