Answer:
Area = 11.76 cm^2
Area = 12 cm^2 (rounded to two significant figures)
Explanation:
Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm².
Now suppose you are asked to enter the answer to two significant figures.
Enter your answer to two significant figures and include the appropriate units.
Given:
Length of rectangle L = 2.1 cm
Width of rectangle W = 5.6 cm
Find:
Area = L * W = 2.1 cm * 5.6 cm = 11.76 cm^2 (Shown)
Rounding off the answer to 2 significant figures. We cut off the above value from 11.76 to 11 while rounding up due to 0.7; Hence, A = 12 cm^2
