Respostas

2014-09-03T15:21:47-03:00
Por Pitágoras:

x² = (2√3)² + (x/2)²
x² = 12 + x²/4
x² = (48 + x²)/4
4x² =48 + x²
3x² = 48
x² = 48/3
x = √16
x = 4cm

2014-09-03T15:27:16-03:00
Hip² = Cop² + Cad²
(2√3)² = h² + ((2√3)/2)²
4 * 3 = h² + 3
12 - 3 = h²
h = 
√9
h =3 cm