oblicz pola powierzchni prostopadloscianow; a) 4m razy 7m razy 2m b)2cm razy 4,5 cm razy 3,5 cm c)11 dm razy 11 dm razy 11dm d)25mm razy 4,7cm razy 0,2dm daje nnnnaaaajjjj szybko pppllliiissss
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a)a=4m
b=7m
h=2m
Pp=2*4*7+2*4*2+2*7*2
Pp= 56+16+28
Pp=100m²
b)
a=2cm
b=4,5cm
h=3,5cm
Pp=2*2*4,5+2*2*3,5+2*4,5*3,5
Pp=18+14+31,5
Pp=63,5cm²
c)
a=11dm
b=11dm
h=11dm
CZYLI TO SZEŚCIN WIĘC BĘDZIE
Pp=6a²
Pp=6*11²
Pp=6*121
Pp= 726dm²
d)
a=25mm=2,5cm
b=4,7cm
c=0,2dm=2cm
Pp=2*2,5*4,7+2*2,5*2+2*4,7*2
Pp=23,5+10+18,8
Pp=52,3cm²
liczę na naj . życzę 5
c)
a = 11dm
b = 11dm
h = 11dm
Pp = 6a²
Pp= 6 *11²
Pp = 6 *121
Pp = 726dm²
a)
a = 4m
b = 7m
h = 2m
Pp =2 * 4 * 7 + 2 * 4 * 2 + 2 * 7 * 2
Pp = 56 + 16 + 28
Pp = 100m²
b)
a = 2cm
b = 4,5cm
h = 3,5cm
Pp = 2 * 2 * 4,5 + 2 * 2 * 3,5 + 2 * 4,5 * 3,5
Pp = 18 + 14 + 31,5
Pp = 63,5cm²
d)
a = 2,5cm
b = 4,7cm
c = 2cm
Pp = 2 * 2,5 * 4,7 + 2 * 2,5 * 2 + 2 * 4,7 * 2
Pp = 23,5 + 10 + 18,8
Pp = 52,3cm²