Odpowiedź:
wzór na pole trapezu to:
(a+b)×h
P=------------
2
Zadanie.26
a.)
a=19dm
b=9dm
h=12dm
(19+9)×12
P=----------------- =168dm²
b.)
a=23dm
b=16dm
h=2dm
(23+16)×2
P=------------------ = 39dm²
c.)
a=90cm=9dm
b=6dm
h=0.5m=5dm
(9+6)×5
P=------------- =19.5dm²
Zadanie.27
a=5+7=12cm
b=3cm
h=6cm
(12+3)×6
P=--------------- =15cm²
a=8m
b=2m+10m=12m
h=10m
(8+12)×10
P=---------------- =64m²
a=10m+6m=16m
b=8m
h=12m
(16+8)×12
P=--------------- =56m²
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Odpowiedź:
wzór na pole trapezu to:
(a+b)×h
P=------------
2
Zadanie.26
a.)
a=19dm
b=9dm
h=12dm
(19+9)×12
P=----------------- =168dm²
2
b.)
a=23dm
b=16dm
h=2dm
(23+16)×2
P=------------------ = 39dm²
2
c.)
a=90cm=9dm
b=6dm
h=0.5m=5dm
(9+6)×5
P=------------- =19.5dm²
2
Zadanie.27
a.)
a=5+7=12cm
b=3cm
h=6cm
(12+3)×6
P=--------------- =15cm²
2
b.)
a=8m
b=2m+10m=12m
h=10m
(8+12)×10
P=---------------- =64m²
2
c.)
a=10m+6m=16m
b=8m
h=12m
(16+8)×12
P=--------------- =56m²
2
LICZĘ NA NAJ !!!