Odpowiedzi

2010-04-10T17:55:04+02:00
1.

h= 3dm = (a√3)÷2

a√3 = 3*2
a√3 = 6
a = 2√3

P = (a²√3)÷4
P = [(2√3)²√3]÷4
P = 12√3 ÷ 4
P = 3√3

2.

P = 50 = a²
a= √50 = 5√2

Przekątna : a√2 = 5√2 * √2 =10
2010-04-10T17:55:41+02:00
P = 1/2 * a * H

h = 3

a√3/2 = 3 / *2

6= a√3 / :√3

6/√3 = a

a= 6√3/3
a= 2√3

P = 3* 2√3
P= 6√3


zad 2

P= 50

a²= 50
a=√50
a= 5√2

d= a√2
d= 5√2 * √2
d= 10