zadanie 1
d = (28cm:4)*√2
d = 7cm*√2
d = 7√2 cm
zadanie 2
a = 8cm
Obw = 3a
Obw = 3*8cm
Obw = 24cm
h = a√3/2
h = 8√3/2cm
h = 4√3cm
P = a²√3/4
P = 8cm*8cm*√3/4
P = 16√3 cm²
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zadanie 1
d = (28cm:4)*√2
d = 7cm*√2
d = 7√2 cm
zadanie 2
a = 8cm
Obw = 3a
Obw = 3*8cm
Obw = 24cm
h = a√3/2
h = 8√3/2cm
h = 4√3cm
P = a²√3/4
P = 8cm*8cm*√3/4
P = 16√3 cm²
Obw = 4a
28 = 4a
a = 7
Przekątna = a√2
Przekątna = 7√2
Odp. Przekątna ma 7√2.
2) a = 8
P= ?
Obw = ?
H = ?
Obw = 3a
Obw = 3*8 = 24
H= a√3/2
H = 8√3/2
H = 4√3
P = (a²√3):4
P = (8²√3):4
P = 64√3 : 4
P = 16√3