I cut three square shaped paper and notice the changes in area if __
length becomes double

I cut three square shaped paper and notice the changes in area if __ length becomes half.

My borther Dipu draws a picture on a rectangular sheet of paper whose length is 15 cm and breadth is 8 cm. Let's calculate and write the change of area of the paper if he changes the length to twice the previous length and keeps the breadth same.

x and y are the sides of two squares such that y=x-x^2 Find the rate of change of the area of the second square with respect to the first square.

There is a squared park and a rectangular park in the locality of Pradipbabu. The area of a rectangular park is 78 sq-m less than twice of the area of that square-shaped park whose length is 5 m more than the length of the side of that park and the breadth is 3 m less than the length of the side of that park. Calculate the length of side of the square-shaped park.

A metal write of resistance 6 ohm is stretched so that is length becomes double of its original length. What would be the final resistance?

Air is being pumped into the tyre of a car at a specific pressure. When the pressure of the tyre become double and the temperature of air is 15^(@)C , the tyre bursts suddenly. Find out the change in temperature.

An irregular shaped wire PQRS placed in a uniform magnetic field perpendicular to the plane of the paper changes into a circular shape. What will be the direction of the induced current in the loop.

A certain quantity of money becomes three times in 20 years , then at the same rate of interest in how many years it will become double?

How will the time period of a simple pendulum change when its length is doubled?

What will be the change in the force constant of a spring if its length is doubled?