Rectangular 3957

The block with a rectangular base measuring 18 cm and 11 cm has a surface of 1,556 cm square. Calculate the height of the block.

Correct answer:

h =  20 cm

Step-by-step explanation:

a=18 b=11 S=1556 S1=a b=18 11=198 o=2 (a+b)=2 (18+11)=58 S2=S2 S1=15562 198=1160 S2 = h   o h=S2/o=1160/58=20 cm

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