To'g'ri burchakli uchburchakka tashqi chizilgan doiraning yuzini topish formulasi

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To'g'ri burchakli uchburchakka tashqi chizilgan doiraning yuzasini topish uchun ishlatiladigan formula

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Demak, har qanday aylana uchun yuzani topish formulasi:

S = πr2

Bizga hozir radius kerak. To'g'ri burchakli uchburchakka tashqi chizilgan aylana radiusi uchburchak gipotenuzasining yarmiga teng, ya'ni r = gipotenuza / 2. Demak, agar aytaylik uchburchak gipotenuzasi 6sm deb olinadigan bo'lsa, unda aylananing yuzasi:
S = 3,14 * (6/2)= 3,14 * 9 = 28,26 sm2
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R=abc/4S radiusi formulasi s=pi R2 S=pi A2

B2C2/16 (ab/2)2

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