a) P=a²√3:4
a=8cm
P=8²√3:4=64√3:4=16√3cm²
b)P=a²√3:4
a=10cm
P=10²√3:4=100√3:4=25√3cm²
c)h=a√3:2
a=3
h=3√3:2=1,5√3
zad
a)Δ rownoboczny o boku a=8cm
P=(a²√3):4=(8²√3):4=64√3:4=16√3cm²
b)Δrownoboczny o boku a=10cm
c)Δ rownoboczny o boku a=3
h=(a√3):2=(3√3):2=1,5√3
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a) P=a²√3:4
a=8cm
P=8²√3:4=64√3:4=16√3cm²
b)P=a²√3:4
a=10cm
P=10²√3:4=100√3:4=25√3cm²
c)h=a√3:2
a=3
h=3√3:2=1,5√3
zad
a)Δ rownoboczny o boku a=8cm
P=(a²√3):4=(8²√3):4=64√3:4=16√3cm²
b)Δrownoboczny o boku a=10cm
P=10²√3:4=100√3:4=25√3cm²
c)Δ rownoboczny o boku a=3
h=(a√3):2=(3√3):2=1,5√3