Question

Three cube each of edge 10cm are joined t form a coboid .The surface area of resultsing cuboid

Answer 1

Answer:

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Answer 2

Answer:

length of cuboid = 10 + 10 + 10 = 30cm

breadth = 10cm

height = 10cm

so,

surface area = 2(lb + bh + hl)

= 2( 30 ×10 + 10 * 10 + 10 × 30

= 2 ( 300 + 100 + 300)

= 2 ( 700)

= 1400 cm²