solve the following questions including their drawing:

Solve the following problems. 1. The horizontal side of a square is increased by 5 cm & the vertical side by 2 cm, so as to form a rectangle whose perimeter is 42 cm. What is the area of the square ? 2. The length of the rectangle diminished by 6 mm & its width increased by 3 mm to form a 25 mm square. Find the perimeter of the rectangle ? 3. Two concentric circles whose radii are 5 in & 3 in, respectively. Find the area of the shaded region ? 4. Find the side of an equilateral triangle whose area is equal to 27.72 ft & its height is 6.93 ft ? 5. A 9 x 7 cm rectangular cardboard is cut by 4 equal square in each corner whose area is equal to 4 cm?. Find the area of the remaining part of the cardboard