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Squares and Square Roots MATHS - Squares and Square Roots

ICSE - STD 8 - MATHS (ICSE - English Medium). 30 questions in this chapter.

Question types

Squares and Square Roots question types

30 questions across 3 question groups — pick any mix to generate a MATHS paper with step-by-step answer keys.

30
Questions
3
Question groups
5
Question types
Sample Questions

Squares and Square Roots questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 11MCQ1 Mark
Given that $\sqrt{1521}=39$, the value of $\sqrt{0.1521}+\sqrt{15.21}$ is
  • A
    $42.9$
  • ✓
    $4.29$
  • C
    $3.51$
  • D
    $35.1$

Answer: B.

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Q 12MCQ1 Mark
$n^{th}$ triangular number is
  • ✓
    $\frac{n(n+1)}{2}$
  • B
    $\frac{n(n-1)}{2}$
  • C
    $\frac{(n-1)(n+1)}{2}$
  • D
    None of these

Answer: A.

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Q 13MCQ1 Mark
If one number of Pythagoream triplet is $6,$ then the triplet is
  • A
    $(4, 5, 6)$
  • B
    $(5, 6, 7)$
  • ✓
    $(6, 7, 8)$
  • D
    $(6, 8, 10)$

Answer: C.

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Q 14MCQ1 Mark
The smallest number that should be subtracted from $300$ to make it a perfect square is
  • ✓
    $11$
  • B
    $12$
  • C
    $13$
  • D
    $14$

Answer: A.

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Q 15MCQ1 Mark
If the area of a square field is $961$ unit $2$, then the length of its side is
  • A
    $29$ units
  • B
    $41$ units
  • ✓
    $31 $ units
  • D
    $39 $ units

Answer: C.

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