Final answer:
The area of the rectangle is 1.68 square meters.
Step-by-step explanation:
The area of a rectangle can be found by multiplying its length and width.
Given that the length of the rectangle is 2.1 m and the height is 0.8 m, we can calculate the area as:
Area = length x height
Area = 2.1 m x 0.8 m
Area = 1.68 square meters