Page 73 - Start Up Mathematics_8 (Non CCE)

6. Find the square root of each of the following numbers by Division method.
(i) 2304 (ii) 4489 (iii) 3481 (iv) 1369
7. Find the square root of the following decimal numbers.

(i) 2.56 (ii) 7.29 (iii) 51.84 (iv) 42.25
(v) 31.36

Exemplar Problems

1. The hypotenuse of a right triangle with its legs of length 3x and 4x is:
(a) 5x (b) 7x (c) 16x (d) 25x

2. Which letter best represents the location of 25 on a number line?
(a) A (b) B (c) C (d) D
A B C D
0 1 2 3 4 5 6 7
3. All numbers of a Pythagorean triplet are odd. (True/False)
4. The square root of 5.3 ¥ 5.3 is _______.
5. The sides of a right triangle whose hypotenuse is 17 cm are _______ and _________ .
6. A 5.5 m long ladder is leaned against a wall. The ladder reaches the wall to a height of 4.4 m. Find the
distance between the wall and the foot of the ladder.
7. A perfect square number has four digits, none of which is zero. The digits from left to right have values
that are: even, even, odd, even. Find the number.

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