An artist wants to frame a square painting with an area of 400 square inches. She wants to know the length of the wood trim that
is needed to go around the painting.
if x is the length of one side of the painting what equation can you set up to find the length of a side?
1 answer:
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
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