test1
Presentation
•
Mathematics
•
2nd Grade
•
Practice Problem
•
Hard
Mária Matonoková
Used 1+ times
FREE Resource
5 Slides • 4 Questions
1
ROTAČNÝ VALEC
• VZNIKÁ OTÁČANÍM
OBDĹŽNIKA/ŠTVORCA OKOLO
JEDNEJ ÚSEČKY(PRIAMKY)
2
ZÁKLADNÉ POJMY
• r – polomer valca
• d – priemer valca
• v – výška valca
• o – os otáčania
• podstava – kruh
• plášť –obdĺžnik/štvorec
r
v
o
S
rovnostranný valec – výška = priemer; v = d
d
3
OBJEM VALCA
V = Sp.v
V = .r2.v
4
POVRCH VALCA
S = 2.Sp + Spl
S = 2..r2+ 2. .r.v
S = 2. .r.(r + v)
5
6
Multiple Choice
Vyber obrázok rovnostranného trojuholníka α+β+γ=60°
7
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8
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Načrtni kocku
9
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ROTAČNÝ VALEC
• VZNIKÁ OTÁČANÍM
OBDĹŽNIKA/ŠTVORCA OKOLO
JEDNEJ ÚSEČKY(PRIAMKY)
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