Answer:

Step-by-step explanation:

It is a down shift of 3.
Also written as (x, y-3)
First, find the length
L^2+W^2=D^2 )L for length, W for width, D for diagonal)
L^2=25^2-15^2=625-225=400
L=20
A=1/2 of L*W= (1/2)*20*15=150 square inches
I think division, at least that's how I wrote it in school