A picture measuring 27.9 cm by 35.6 cm is surrounded by a mat 7.6 cm wide. Find the outer perimeter of the picture with the mat. What is the are of the picture including the mat?

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07-10-2014
Mathematics

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A picture measuring 27.9 cm by 35.6 cm is surrounded by a mat 7.6 cm wide. Find the outer perimeter of the picture with the mat. What is the are of the picture including the mat?

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luana luana · Answer 1 · 2014-10-08T07:31:22-04:00

luana luana

08-10-2014

\(27.9x35.6-measuring\ without\ mat\\\\27.9+2\cdot7.6=27.9+15.2=43.1\\35.6+2\cdot7.6=35.6+15.2=50.8\\\\Permieter:\\\\2\cdot43.1+2\cdot50.8=86.2+101.6=187.8\)

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