# Ali wishes to make a frame for his class picture. The picture measures 50 cm by 24 1/2 cm. How many centimeters of molding will he need?

2
by lvarezmax915

2015-05-24T19:44:11+08:00

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We just need to get the perimeter since the frame surrounds it:

2015-05-24T20:38:45+08:00

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Normally, frames are rectangle or square, since it has different length, it is a rectangular frame:

P=2(l+w)
Substitute with the given measurements
P=2(50 cm+24.5 cm)
P=2(74.5 cm)
P=149 cm

Hope this helps =)