সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
The second angle of a right triangle is 30°. Then what is the third angle?
The second angle of a right triangle is 30°. Then what is the third angle?
- ক. 50°
- খ. 60°
- গ. 70°
- ঘ. 80°
সঠিক উত্তরঃ 60°
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