D. is the correct answer.
Answer:
UMM IDK BUT PLS MARK AS BRAINLIEST I NEED THE PTS ILL guess its 85 units because my brother said so
Step-by-step explanation:
Answer: 80
Step-by-step explanation:
We can use the formula
, where
are the lengths of the diagonals.
By the distance formula,

So, the area is 
Answer:
Yep!
Step-by-step explanation:
I'm not 100% sure if your first one is correct, but I know the second one is! Great job :)
The denominator tells you the total amount of pieces.