alleryল'ৰা আৰু ছোৱালীয়ে ক্ৰমে 150 আৰু 90 ডিগ্ৰীৰ বৃত্তকলা লয়। ল'ৰা আৰু ছোৱালীৰ অনুপাত কিমান?
A3 : 5
B5 : 4
C4 : 3
D5 : 3
Answer & Solution
Correct answer: D. 5 : 3
বৃত্তকলা দুটাৰ অনুপাত 150 : 90, যিটো 30-ৰে হ্ৰাস হৈ 5 : 3 হয়।
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