alleryদুটা পূৰক কোণৰ অনুপাত 4 : 5। ডাঙৰ কোণটো হ'ল
A50 degrees
B54 degrees
C45 degrees
D40 degrees
Answer & Solution
Correct answer: A. 50 degrees
9 টা অংশত পূৰক কোণ দুটাৰ মুঠ 90 degrees, গতিকে ডাঙৰটো হ'ল 5 x 10 = 50 degrees।
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