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ICSE-VIII-Mathematics

04: Cubes and Cube Roots Class 8 Maths

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  • #1
    Find the cube of : (i) 7 (ii) 11 (iii) 16 (iv) 23 (v) 31 (vi) 42 (vii) 54 (i) 7 (ii) 11 (iii) 16 (iv) 23 (v) 31 (vi) 42 (vii) 54
    Ans : (i) (7)3 = 7 × 7 × 7 = 343 (ii) (11)3 = 11 × 11 × 11 = 1331 (iii) (16)3 = 16 × 16 × 16 = 4096 (iv) (23)3 = 23 × 23 × 23 = 12167 (v) (31)3 = 31 × 31 × 31 = 29791 (vi) (42)3 = 42 × 42 × 42 = 74088 (vii) (54)3 = 54 × 54 × 54 = 157464 (i) (7)3 = 7 × 7 × 7 = 343 (ii) (11)3 = 11 × 11 × 11 = 1331 (iii) (16)3 = 16 × 16 × 16 = 4096 (iv) (23)3 = 23 × 23 × 23 = 12167 (v) (31)3 = 31 × 31 × 31 = 29791 (vi) (42)3 = 42 × 42 × 42 = 74088 (vii) (54)3 = 54 × 54 × 54 = 157464
  • #1-i
    7
    Ans : (7)3 = 7 × 7 × 7 = 343
  • #1-ii
    11
    Ans : (11)3 = 11 × 11 × 11 = 1331
  • #1-iii
    16
    Ans : (16)3 = 16 × 16 × 16 = 4096
  • #1-iv
    23
    Ans : (23)3 = 23 × 23 × 23 = 12167
  • #1-v
    31
    Ans : (31)3 = 31 × 31 × 31 = 29791
  • #1-vi
    42
    Ans : (42)3 = 42 × 42 × 42 = 74088
  • #1-vii
    54
    Ans : (54)3 = 54 × 54 × 54 = 157464