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Squares & Square Roots — Chapter Test

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Q1
A perfect square can never end in which digit?
Perfect squares never end in 2, 3, 7 or 8.
Q2
1, 4, 9, 16 are squares. What comes next?
5² = 25.
Q3
Which of these is a perfect square?
64 = 8².
Q4
What is √100?
10 × 10 = 100.
Q5
What is 13²?
13 × 13 = 169.
Q6
What is √196?
14 × 14 = 196.
Q7
What is √225?
15 × 15 = 225.
Q8
What is √324?
18 × 18 = 324.
Q9
What is 15²?
15 × 15 = 225.
Q10
What is √441?
21 × 21 = 441.
Q11
A square hall has side 12 m. What is its area?
12 × 12 = 144 sq m.
Q12
A square garden has area 169 sq m. What is its side?
√169 = 13 m.
Q13
Which is a Pythagorean triplet?
8² + 15² = 64 + 225 = 289 = 17².
Q14
What is √1024?
32 × 32 = 1024.
Try again ↻