We can calculate the area of a parallellogram by multiplying the length of the base (45 units) by the height (42 units, shown in red).
NOTE: the height is always measured in a segment that is perpendicular to the base.
Then, we can calculate:
![A=b\cdot h=45u\cdot42u=1890u^2](https://img.qammunity.org/2023/formulas/mathematics/college/bwcd3cvku64rgftuti0ykbi3fzbdibwfqp.png)
Answer: the area is 1890 units^2.