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ALAN VE ÇEVRE HESAPLARI
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ALAN
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ÇEVRE
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ÜÇGEN
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1
A = ---- .a.h
2
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U = a + b + c
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YAMUK (Trapez)
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a + b
A = -------- . h
2
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U = a + b + c + d
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DİKDÖRTGEN
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A = a . b
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U = 2(a + b)
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DAİRE DİLİMİ
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b.r α°
A = ---- = ----- .r2 .π
2 180
α°
b = r.π. ----- yay boyu
90
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U = 2r + b
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YARIM DAİRE
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1
A = ------- . π.r2
2
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U = r (2 + π) = 5,14 . r
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DAİRE
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d2
A = r2 .π = π ------
4
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U = 2π . r = π . d
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DAİRE HALKASI DİLİMİ
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a
A = -------- .π. (R2 − r2 )
180
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U = 2 (R — r) + B + b
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YARIM DAİRE HALKASI
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π
A = ------ . ( R2 − r2 )
2
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U = 2 (R — r) + B + b
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DAİRE HALKASI
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A = π . (R2— r2)
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U = 2π (R + r)
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ELİPS ÇEMBERİ
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π.d.D
A = ----------
4
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a + b
U = ----------- .π
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