Right angle : সমকোণ;
Related Words
rectangle  rectangles  right angle  right angled  right angles  right-angled  rightangle  See Words Also In
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Appropriate Prepositions
Abide by(মেনে চলা): We must abide by the rules of discipline.
Fatigued by (ক্লান্ত): He was fatigued by hard work.
Noted for (বিখ্যাত): She is noted for dancing.
Play at (খেলা): I do not play at cards.
Relevant to (প্রাসঙ্গিক): Your answer is not exactly relevant to my question.
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Idioms
Pin money (স্ত্রীর দেয়া হাত খরচ)— She saved her pin money.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.
Speed money (ঘুষ; উৎকোচ): He hankers after speed money.
Take into account (বিবেচনা করা): Your activities should be taken into account.
To meet trouble half-way (পুরোপুরি মোকাবেলার আগেই হাল ছেড়ে দেয়া): He met trouble half way after getting the instructions.