Answer:
128cm²
Step-by-step explanation:
A=½×b×h
A=½×16cm×16cm
A=½×256cm²
A=128cm²
ANSWER
The coordinates of the image are (2,2)
EXPLANATION
The mapping for a reflection across the line y=k is :

We want to find the image of the point (2,-4) after a reflection in the line y=-1.
In this case k=-1.

This simplifies to,


Hence the image is (2,2)
I believe b is about 16.3, hope this helps