Oblicz pola zamalowanych części kół . :)
Załącznik :d
1) r=2
P w=1/4 π r²
Pw=1/4 π*4
Pw=π
PΔ=1/2 r²
PΔ=1/2*4=2
P od.=(π-2)
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2) r=2
Δ jest rownoboczny
P=r²√3/4
PΔ=√3
P w=1/6 π r²
P w=1/6 π*4
Pw=2/3 π
Pod=2/3π-√3
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1) r=2
P w=1/4 π r²
Pw=1/4 π*4
Pw=π
PΔ=1/2 r²
PΔ=1/2*4=2
P od.=(π-2)
============================================
2) r=2
Δ jest rownoboczny
P=r²√3/4
PΔ=√3
P w=1/6 π r²
P w=1/6 π*4
Pw=2/3 π
Pod=2/3π-√3
==========================================