Question

aflati perimetrul unui romb ABCD,stiind ca m(<BAD)=60 si BD=8cm

Answer 1

m(<BAD)=60 => BAD echilateral => BA = AD = BD = 8 = diag. mic

h BAD = (l rad3) / 2 = 4 rad3

diag. mare = AC = h BAD * 2 = 8 rad 3

A = (d mic * d mare) / 2
    = (8 * 8 rad 3)/2
    = 32 rad 3 cm2