Rozwiąż zadnia z olbliczeniami i z odpowiedzią :P . Dam naj
zadanie1
P=12cm²
b=3cm
P=a·b|:b
a=P:b
a=12:3
a=4cm
zadanie2
a=5cm
b=2a
b=2·5
b=10cm
P=ab
P=5·10
P=50cm²
zadanie3
a=1,2m
b=0,5·a
b=0,5·1,2
b=0,6m
P=a·b
P=1,2·0,6
P=0,72m²
zadanie4
P=49cm²
P=a²
a=√P
a=√49
a=7cm
L=4·a
L=4·7
L=28cm
zadanie5
b=3·a
b=3·4
b=12cm
P=4·12
P=48cm²
L=2·a+2·b
L=2·4+2·12
L=8+24
L=32cm
zadanie6
P=42cm²
a=14cm
P=a·b|:a
b=P:a
b=42:14
L=2·14+2·3
L=28+6
L=34cm
zadanie8
a=6cm
P=6·3
P=18cm²
P₂=2·P
P₂=2·18
P₂=36cm²
P₂=c²
c=√P₂
c=√36
c=6cm
zadanie9
a=4,5m
b=3m
P=4,5·3
P=13,5m²
c=3m
P₂=3²
P₂=9m²
P-P₂=13,5-9
P-P₂=4,5m²
zadanie10
a=6m
b=4m
c=2·a
c=2·6
c=12m
P=6·4
P=24m²
P₂=b·c
P₂=4·12
P₂=48m²
P₂:P=48:24
P₂:P=2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
zadanie1
P=12cm²
b=3cm
P=a·b|:b
a=P:b
a=12:3
a=4cm
zadanie2
a=5cm
b=2a
b=2·5
b=10cm
P=ab
P=5·10
P=50cm²
zadanie3
a=1,2m
b=0,5·a
b=0,5·1,2
b=0,6m
P=a·b
P=1,2·0,6
P=0,72m²
zadanie4
P=49cm²
P=a²
a=√P
a=√49
a=7cm
L=4·a
L=4·7
L=28cm
zadanie5
a=4cm
b=3·a
b=3·4
b=12cm
P=a·b
P=4·12
P=48cm²
L=2·a+2·b
L=2·4+2·12
L=8+24
L=32cm
zadanie6
P=42cm²
a=14cm
P=a·b|:a
b=P:a
b=42:14
b=3cm
L=2·a+2·b
L=2·14+2·3
L=28+6
L=34cm
zadanie8
a=6cm
b=0,5·a
b=3cm
P=a·b
P=6·3
P=18cm²
P₂=2·P
P₂=2·18
P₂=36cm²
P₂=c²
c=√P₂
c=√36
c=6cm
zadanie9
a=4,5m
b=3m
P=a·b
P=4,5·3
P=13,5m²
c=3m
P₂=c²
P₂=3²
P₂=9m²
P-P₂=13,5-9
P-P₂=4,5m²
zadanie10
a=6m
b=4m
c=2·a
c=2·6
c=12m
P=a·b
P=6·4
P=24m²
P₂=b·c
P₂=4·12
P₂=48m²
P₂:P=48:24
P₂:P=2