25 mm is equal to how many cm?

1 Answer
Jim G.
Sep 8, 2016

25mm = 2.5cm

Explanation:

Using the #color(blue)"related conversion"#

That is #color(red)(bar(ul(|color(white)(a/a)color(black)(1cm=10mm)color(white)(a/a)|)))#

#rArr25mm=(2xx10mm)+(1/2xx10mm)#

so we have #2+1/2"cm"=2 1/2=2.5"cm"#

or using #color(blue)"ratio method"#

#(1cm)/(10mm)=(xcm)/(25mm)" require to calculate value of x"#

using #color(blue)"cross-multiplication"#

#rArr10x=25rArrx=(25cancel(mm))/(10cancel(mm))=2.5" cm"#

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