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1.V1=H·πr²=9·2²π=36πV2= ⅓a²H=⅓·2²·6=8V3= πr³=π·2³=20⅔πV4= ⅓πr²·H=⅓π·2²·6=8π2. C3. A4. 4·6m+4·5m=24m+20m=44m5. D6. 1dm³=1l 40dm³=40l
7. a²+b²=c² | -b²a²=c²-b²H²=15²- 9²H²=225-81H²=144H=√144H=12 8. 30m·50m·4m=300dm·500dm·40dm=6000000dm³=6000000l 6000000l:2=3000000l
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1.
V1=H·πr²=9·2²π=36π
V2= ⅓a²H=⅓·2²·6=8
V3= πr³=π·2³=20⅔π
V4= ⅓πr²·H=⅓π·2²·6=8π
2. C
3. A
4. 4·6m+4·5m=24m+20m=44m
5. D
6. 1dm³=1l 40dm³=40l
7.
a²+b²=c² | -b²
a²=c²-b²
H²=15²- 9²
H²=225-81
H²=144
H=√144
H=12
8. 30m·50m·4m=300dm·500dm·40dm=6000000dm³=6000000l
6000000l:2=3000000l