Look at the picture.
The area of a parallelogram:

The area of a triangle:

The area of the polygon:
[texA=A_P+A_T\\\\A=15+12.5=27.5\ u^2[/tex]
Answer: D. 27.5 square inches /inches?/ I think, correct is units
Answer:
See explanation
Step-by-step explanation:
We want to show that:

One way is to use the basic double angle formula:


We simplify further to get:

We simplify again to get;

This finally gives:

I wish I could help but I didn’t learn that
D is the correct fraction