We convert the known width of the rectangle from millimeters to centimeters.
Since 1 cm is 10 mm, we get:
9 mm = 9/10 = 0.9 cm.
Find the length of the rectangle.
Since we know that it is 1 cm wider than the width, we get:
0.9 + 1 = 1.9 cm.
Find the perimeter of the rectangle.
To do this, multiply the sum of the length and width of the rectangle by 2 parts.
2 * (0.9 + 1.9) = 2 * 2.8 = 5.6 cm.
Determine the area of the rectangle.
To do this, we multiply the length and width of the figure between ourselves.
0.9 * 1.9 = 1.71 cm2
Answer: 5.6 cm, 1.71 cm2
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