A cube has edge 13 m. Find its length of diagonal,

Length of diagonal radic 3 a radic 3 times 13 13radic3 Surface area 6asup2 6 times 13 times 13 1014m2, Volume of a cube asup3 13sup3 2197 m3

surface area and volume.

A 16√3, 1,175 sq. m, 2,644 mt cube Correct Answer Incorrect Answer

B 18√3, 1,172 sq. m, 1744 mt cube Correct Answer Incorrect Answer

C 13√3, 1,014 sq. m, 2197 mt cube Correct Answer Incorrect Answer

D 10√3, 1,177 sq. m, 2,744 mt cube Correct Answer Incorrect Answer

E None of these Correct Answer Incorrect Answer

Solution

Length of diagonal= √( 3 ) a = √( 3 )× 13 = 13√3 Surface area= 6a² = 6 × 13 × 13= 1014m^(2,) Volume of a cube= a³= 13³ = 2197 m^3

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