Question

Calculati aria patratului cu latura de (radical din 27 - 3 radical din 2) dm

Answer 1

Aria unui pătrat = l^2

In cazul nostru, l = (radical 27 - 3 radical 2) dm

Aria patratului = (radical 27 - 3 radical 2)^2 = ( 3 radical 3 - 3 radical 2)^2 = [3(radical 3 - radical 2)]^2 = 9 × (radical 3 - radical 2)^2 = 9 × (3 - 2 radical 6 + 2) = 9 × (5 - 2 radical 6) dm patrati

R: Aria patratului = 9(5-2 radical 6) dm patrati