Henry Ernest Dudeney/Puzzles and Curious Problems/225 - An Artist's Puzzle

Puzzles and Curious Problems by Henry Ernest Dudeney: $225$

An Artist's Puzzle

An artist wished to obtain a canvas for a painting which would allow for

the picture itself occupying $72$ square inches,

a margin of $4$ inches on top and on bottom,

and $2$ inches on each side.

What is the smallest dimensions possible for such a canvas?

Sources

• 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Geometrical Problems: Various Geometrical Puzzles: $225$. -- An Artist's Puzzle
• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Geometrical Problems: Triangle, Square & Other Polygon Puzzles: $275$. An Artist's Puzzle