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2014-07-18T17:38:12+03:00
1
Aria=d1*d2:2=6*8:2=24
L²=(d1:2)²+(d2:2)²=3²+4²=9+16=25=5²
L=5
A=h*L=5h
=> 5h=24 => h=24/5

2.
L=latura neparalela
L²=(B-b)²+h²=4²+3²=16+9=25
L=5
Perimetru = AD+BC+AB+CD=3+5+10+6=24 cm

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