Write the method drawSquare below. /** Precondition: 0 ≤ x < 10, 0 < y ≤ 10, and len > 0.

* Draws a square on a 10-by-10 xy-coordinate grid

* and prints the square’s side length and area.

* The upper left corner of the square will be located

* at the coordinate (x, y) and the side length of the

* square will be len (or as large as will fit in the grid).

*/

public void drawSquare(int x, int y, int len)

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.