Answer
Answer:
$A=135cm^2$
Work Step by Step
11.
We are already given that $h$ will represent the height corresponding to the $18 cm$ base. We also know that one of the parallelogram's sides equals $15cm$. We are also informed that the height of the triangle, traced outside of the shaded region of the parallelogram, corresponds to the $15cm$ hypotenuse, which equals $9cm$.
Given all the information, we just need to figure out the area of the parallelogram.
12.
The formula of the area of a parallelogram is:
$A=bh$.
We are going to plug in the given base and height:
$A=15 * 9$
$A=135$
13. The area of the parallelogram is $135cm^2$
