Sektor nima?, Doiraning ikki vatari kesishgan nuqta, Doirada vatar hosil qilgan yuza, Doiraning ikkita eng katta vatarining yarmi va ular orasidagi yoy bilan chegaralangan qismi, Doiraning radius va ular orasidagi yoy bilan chegaralangan qismi sektor deyiladi., Doirada vatar hosil qilgan segmentlar yuzasi nimaga teng?, 2πR, πR2, R/2(α-sinα), 2πR/360, Radiusi 6 sm bo‘lgan doirada 60° markaziy burchakka mos sektor yuzasini toping., 5π, 6π, 7π, 8π, Radiusi 10 sm bo‘lgan doirada 90° li sektorning yoy uzunligini toping., 5π, 6π, 7π, 8π, Radiusi 15 sm bo‘lgan doirada 90° li sektorning yoy uzunligini toping., 6,5π, 7,5π, 8,5π, 9,5π, Radiusi 8 sm bo‘lgan doirada 120° li sektor yuzasini toping., 66cm2, 67cm2, 68cm2, 69cm2, Radiusi 10 sm bo‘lgan doirada 120° li sektor yuzasini toping., 33,33π, 44,44π, 55,55π, 66,66π, Radiusi 12 sm bo‘lgan doirada 120° markaziy burchakli kichik segment yuzasini toping, 48π−36√3, ​24π−36√3, 56π−36√3, 36π−36√3, Radiusi 10 sm bo‘lgan doirada 60° burchak hosil qilgan vatar kesib olgan kichik segment yuzasini toping., 50π/3-25√3, 30π/3-25√3, 49π/3-25√3, 70π/3-25√3, Radiusi 13 sm bo‘lgan doirada 120° li sektor yuzasidan uchburchak yuzasini ayirib segment yuzasini toping., 269π/3-169√3/4, 130π/3-169√3/4, 169π/3-169√3/4, 128π/3-169√3/4, Radiusi 9 sm bo‘lgan doirada vatar 120° markaziy burchak hosil qiladi. Shu vatar kesib olgan katta segment yuzasini toping., 54π-81√3/4, 36π-81√3/4, 48π-81√3/4, 64π-81√3/4, Radiusi 14 sm bo‘lgan doirada 150° li sektorning yoy uzunligi va yuzasini toping., 254π/3, 245π/3, 260π/3, 225π/3, Radiusi 10 sm bo‘lgan doirada vatar 120° markaziy burchak hosil qiladi. Shu vatar kesib olgan kichik segment yuzasini toping., 100π/3-50√3, 200π/3-75√3, 200π/3-25√3, 100π/3-25√3

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