SOLUTION: all about quadrilaterals
a picture frame is 24cm by 18 cm. if the area of the picture itself is 216cm², what is the width of the frame?
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a picture frame is 24cm by 18 cm. if the area of the picture itself is 216cm², what is the width of the frame?
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Question 888458: all about quadrilaterals
a picture frame is 24cm by 18 cm. if the area of the picture itself is 216cm², what is the width of the frame? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! (24-x)*(18-x)=216
432-42x-x^2=216
216-42x-x^2=216
x=6 and x=36
we discard 36
24-6=18
18-6=12
18*12=216
