Area of rectangle: 9 times 11 = 99 square inches
The area is 0.3" x 0.6" = 0.18 square inches.
9 x 13 = 117 square inches
You can`t be sure of the individual sides. A one inch by sixteen inch rectangle, an eight by two inch rectangle, a four inch by four inch rectangle all have the same area (16 square inches) but the first rectangle`s sides add up to 34, the second rectangle`s sides add up to 20, the third rectangle`s sides add up to 16
9" x 4"
A square inch is a measure of area. The area could have any shape but for simplicity consider squares and rectangles where the area is given by the product of length and width, lxw. The length and the width are linear measurements. You can assign any values you want to the length and width and their product will be an area. A square with sides of 1 inch will have an area of one square inch. A rectangle whose length is 2 inches and width 1/2 inch will also have an area of one square inch.
If the given dimensions are in inches then 5 times 7 = 35 square inches
28 inch square
You can't - inch is a length and meter is an area. However, square meters to sq inches is 1 square metre = 1 550.0031 square inches
With X length = square
An area cannot be converted into a unit of length 1100 square meters are 1705003.410007 "square" inches.