Identical 36423

We glued the letter T from two identical wooden blocks, 5 cm x 5 cm x 10 cm, and wanted to paint it. How big will it be?

Correct answer:

S =  450 cm2

Step-by-step explanation:

a=5 cm b=5 cm c=10 cm  S1=2 (a b+b c+c a)=2 (5 5+5 10+10 5)=250 cm2 S2=a b=5 5=25 cm2  S=2 S12 S2=2 2502 25=450 cm2

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