Problema Solution
The Frame on the picture is 28 cm by 32 cm outside and is of uniform width. what is the width of the frame if 192cm^2 of the picture shows.
Answer provided by our tutors
let 'w' represents the width of the frame, w>0, x<28, x< 32
28*32 - (28 - 2w)(32 - 2w) = 192
by solving we find:
w = 1.7 cm
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the width of the frame is 1.7 cm.