Answer:
There were 3 diamonds.
Step-by-step explanation:

Therefore, 

Therefore,




Area=legnth times width
if legnth=x
and
area=400
400=x times width
wait
SQUARE painting
legnth=width
width=x
400=x times x
400=x^2
sqrt both sides
20=x
answer is 20 in
equation is
400=x times x
What grade is this taught in
64-24rfeeeemvokerfjierfjrijvifre