alleryतीन त्रिज्यखंडों के माप 120, 90 और 60 डिग्री हैं। चौथे त्रिज्यखंड का कोण कितना है?
A60 डिग्री
B70 डिग्री
C80 डिग्री
D90 डिग्री
Answer & Solution
Correct answer: D. 90 डिग्री
पहले तीन कोणों का योग 270 डिग्री है, इसलिए अंतिम त्रिज्यखंड = 360 - 270 = 90 डिग्री है।
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