a)
P=a²√3/4
P=8²√3/4
P=64√3/4
P=16√3 cm²
b)
d=a√2
d=5√2 cm
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a)a=8cm
P=a²√3:4
P=(8cm)²√3:4
P=64cm²√3:4
P=16√3cm²
b)
a=5cm
d=a√2
d=5√2cm
liczę na naj ;D
a)
P=a²√3/4
P=8²√3/4
P=64√3/4
P=16√3 cm²
b)
d=a√2
d=5√2 cm