If , which of the following must be false?

If a square region (PQRS) has an area of 4 square feet, what is the of its length of its diagonal (PR)?

I the figure below, the middle point on segment PQ is:

In the circle below, if 0 is the center of the circle, What fractin of the circle is shaded ?

The average of X and Y is 40 , and the average of Y and Z is 35. What is the value of (x -z) . ?

What is the rate of discount if a car that had a regular price of TK. 30,00,000 is sold for TK. 27, 90, 000?

Zinat's father contributes to his daughter's saving by giving he 10% of her total saving. If zinat saves Tk. 1...