2-mavzu: Geometrik yasashlar. Urinma o’tkazish. Tutashmalar. Aylanani teng bo’laklarga bo’lish. Ay

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2-мавзу(амалий)

O v oi d n i u n i ng b er il ga n k en g l i g i b o

Berilgan AV va SD o`qlar bo`yicha oval chizish.
39-shaklda A va S nuqtalarni to`g`ri chiziq bilan tutashtiramiz. Kichik o`qni (SD) davomiga O¹markazdan sirkul yordamida katta o`qning uzunligini (AV) yarmisini (AO) o`lchab qo`yamiz. AS kesmaga S nuqtadan ovalni yarim o`qlarni

ayirmasi A¹S in qo`yib A¹¹nuqtani aniqlaymiz. AA¹¹kesmani o`rtasidan unga perpendikulyar o`tkazamiz. Bu perpendikulyar oval o`qlarni O₁va O₃nuqtada kesadi va oval yoylarning markazi bo`ladi. Sirkul yordamida O₁va O₃markazlarga simmetrik O₂va O₄markazlarni aniqlaymiz. O³va O₄nuqtalaridan O₁va O₂nuqtalar oraliq to`g`ri chiziq o`tkazamiz. O₁va O₂markazlaridan oval yoyini R₁radiusda (R₁=O₁A) o`tkazib tutashish nuqtalari K₁, K₂, K₃, K₄nuqtalarni
^aⁿ^iq^l^a^y^mⁱ^z.^O₃^v^a^O₄^m^ar^k^a^z^d^an^R₂⁼^O₃^K₁^r^a^d^iu^s^d^a^y^o^y^o^`^tk^azⁱ^b^b^er^il^g^an^o^`^q^l^a^r
bo`yicha ovalni hosil qilamiz.

39-shakl
Ovoidni uning berilgan kengligi bo`yicha chizish
Ovoidning kengligi uning katta tayanch aylanasining diametrining
^u^z^uⁿ^l^ig^ig^a^t^eⁿ^g^.^B^u^o^v^oi^dⁿⁱⁿ^g^a^s^o^sⁱ^bo^`^l^a^di^.⁴⁰^-^s^h^a^kl^,^a^d^a^O^O₁^=R,^R^a^s^o^sⁱ
aylananing radiusi bo`lgan ovoidni chizish ko`rsatilgan. Cho`zilgan ovalni chizish

uchun (40-shakl, b) O markazidan yordamchi yoyni
^R₁^^O^O₁
> R radiusda o`tkazib

AV o`qni davomida O₂va O₃markazlarini belgilaymiz. Tutashish nuqtasi K₁va K₂
^O₃^O^,^v^a^O₂^O₁^m^ar^k^azⁱ^y^c^hⁱ^zⁱ^q^l^arⁿⁱ^O₂^O₃^m^ar^k^az^d^an^R₂^r^a^d^iu^s^bi^l^an^k^e^sⁱ^shis^h
ⁿ^uq^t^a^sⁱ^b^o^`^l^a^dⁱ^.^B^u^nd^ay^c^hi^z^iq^l^ar^y^o^r^d^a^m^id^a^R₃⁼^O₁^K₁^y^o^kⁱ^O₁^K₂^y^o^y^bil^aⁿ^o^voi^d

^y^o^yⁱ^t^u^g^a^l^l^aⁿ^a^dⁱ^.^A^g^a^r^O^O₁^{< R}^bo^`^l^s^a^o^`^t^m^as^o^v^oⁱ^d^h^o^sⁱ^l^b^o^`^l^a^dⁱ⁽⁴⁰^-^s^h^a^kl^,^v^).

40-shakl

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