Question

Calculeaza (in m2) aria unui patrat care are perimetrol de:
a) 12m b) 1m c) 36cm e)14cm

Answer 1

Răspuns:

a)P= 12m ⇒ l=12:4=3  A=3x3=9m²

b)P= 1m ⇒ l=1:4=0,25  A=0,25x0,25=0,0625m²

c) P=36cm ⇒ l=36:4=9 A=9x9=81m²

e)P=14cm⇒ l=14:4=3,5   A=3,5x3,5=12,25m²

Explicație pas cu pas: