Length measurement

Choose the measurement closest to 60 ​cm:



« Correct result

Wrong answer

Step-by-step explanation:

a=5 ft→ cm=5⋅ 30.48  cm=152.4 cm b=10 in→ cm=10⋅ 2.54  cm=25.4 cm c=20 in→ cm=20⋅ 2.54  cm=50.8 cm  x=60 cm Δ1=∣x−a∣=∣60−152.4∣=5462​=9252​=92.4 cm Δ2=∣x−b∣=∣60−25.4∣=5173​=3453​=34.6 cm Δ3=∣x−c∣=∣60−50.8∣=546​=951​=9.2 cm  Δ3 < Δ2 < Δ1 C

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