নিচের তথ্যগুলো লক্ষকরি এবং সত্যতা নিরুপণ করি? (i) বৃত্তে অন্তলিকিত চতুেভূজের দুইটি বিপরীত কোণের সমষ্টি কোন 90° (ii) বৃত্তে অন্তলিখিত চতুভূজের যেকোনো দুইটি বিপরীত কোণের সমষ্টি 180° (iii) বৃত্তের অন্তলিখিত চতুর্বূতের যেকোনো দুইটি বিপরীত কোনের সমষ্টি দুই সমকোণ
একটি বাড়ি 20 ফুট উঁচু ।একটি মইয়ের তলদেমেমাটিতে ছাদ দেয়াল থেকে 15 ফুট দূরে রাখা। উপরে মইটি বাড়ির ছাদ ছুঁয়ে আছে। মই কত ফুট লম্বা?
37 ° কোণের পূরক কোণ কত?
যদি কোন ত্রিভুজের দুইটি বাহু পরস্পর সমান হয়, তবে-
If a man walks W miles in H hours, and then rides R miles in the same length of time, what is his average rate for the entire trip?
If M men can complete a job in R hours, how long will it take 7 men to do this job?
If q and r are both odd numbers , which of the following numbers must be an even numbers?
Mr. Walker travels a miles in b hours and then c miles in d hours. How many hours will be needed to travel 500 miles if he maintains this average rate?
A shirt and a pant currently have the same price. If the price of a shirt raised by 5% and the price of a pant goes up by 3% how much more will it cost to buy 2 shirts and 3 pants.
Which of the following fractions is the largest?
If 8 cows produce 16 cans of milk in 4 days , how many days does it take 4 cows to produce 4 cans of milk?
Laila is 2 years younger than mary. If Mary is m years old , how old was Liala two years ago?
If the radius of a circle is increased by 6% then the area of the circle is increased by
The average of 3 numbers is X. If the average of first 2 numbers is Y and the average oflast 2 numbers is Z , what is the second number?
If the product of 2 numbers is 20 and the sum of the two numbers is 10, then the larger of the two numbers is
The price per unit of product increased by 25% The actual taka increase in the unit price was Tk. 1.25. What was the unit price in Taka, before the price increase?
A Tk 2,600 is to be divided among three people so that Z receives twice as much as Y , who receives 1/10 of Z . How much money should Z receives?
The sum in degrees of the interior angles of a polygon of 9 sides is :
A 6 by 8 rectangle is inscribed in circle .What is the circumference of the circle?
What is the average of all the multiples of ten from 10 to 190 inclusive ?