পরস্পর ছেদি দুইটি সরল রেখা ছেদ বিন্দুতে যে চারটি কোণ উৎপন্ন করে তাদের ডিগ্রি পরিমাপের সমষ্টি কত?

A room 5m x 8m is to be carpeted leaving a margin of 10 cm from each wall. If the cost of the carpet is Tk. 18...

A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours...

3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty th...

The three rational numbers between 3 and 4 are:

In triangle ABC, if AB-BC and B=70°, A will be:

The hypotenuse of a right triangle is 2 centimeters more than linger side of the triangle. The shorter side of...