The area of a rectangle is length times width.
The problem gives the length and width and centimeters , so to get millimeters, multiply by ten. The length is 93 millimeters and the width is 87 millimeters.
The area is then (93 mm)*(87 mm) which is 8091 square millimeters.
51.7628 cm
3 cm
Area = 11*12 = 132 square mm
134 square millimeters
If you have a rectangle, measure the length and width of your surface in millimeters and multiply the values. This gives you the area in square millimeters. If you know the area in square meters, multiply by one million (1 000 000) to get square millimeters.
51.7628 cm
The rectangle.
To have consistent units, just convert the centimeters to millimeters (multiply the number of centimeters by 10), and then multiply length x width.
3 cm
In a rectangle, the area is calculated by multiplying length x width. If (for example) both length and width are in centimeters, the area will be in square centimeters.
132 square cm
8.2 cm
Area = 11*12 = 132 square mm
450 square centimeters
If the area of a rectangle is found by measuring the length times the width, then if you know the area is 256 and the width is 8, you find the length by dividing 256 by 8 which would give you a length of 32 centimeters.
if one length is 9cm, the other length must be 6cm to make an area of 54cm. hence the perimeter is 9+9+6+6 = 30cm
134 square millimeters