Question

alguém mr ajudar pfv?​

Answer 1

Resposta:

a)10 x 3 = 30 cm²

b) 5 x 3 = 15 cm²

c) 10 x 8/2 = 80/2 = 40 cm²

d) (4 + 8 ) 3/2 = 12 x 3 /2 = 6 x 3 = 18 cm²

e) 6 x 5 /2 = 30/2 = 15 cm²

f) π x r² = 3,14 x 25 = 78,5 cm²