1 Find the square of the following numbers.
(1) 17
(ii) 203
(iii) 1098
2. Examine if each of the following is a perfect square,
(i) 725
(ii) 190
(iii) 841
(iv) 1089
3. Find the square root by prime factorisation method,
(i) 144.
(ii) 256
(iii) 784
(iv) 1156
(v) 4761
(vi) 9025
4. Find the square root by long division method.
(i) 1764
(ii) 6889
(iii) 11025
(iv) 17956
(v) 418609
5. Estimate the value of the following square roots to the nearest whole number:
(i) √440
(ii) √800
(iii) √1020
6. Find the square root of the following decimal numbers and fractions.
(i) 2.89
(ii) 67.24
(iii) 2.0164
7. Find the least number that must be subtracted to 6666 so that it becomes a perfect square
Also, find the square root of the perfect square thus obtained.
8. Find the least number by which 1800 should be multiplied so that it becomes a perfect square
Also, find the square root of the perfect square thus obtained.
Answers
Answer:
725 and 190 are not a perfect square number
Step-by-step explanation:
A number is said to be perfect square is the factors of the number are in pair
We have given numbers
(i) 725 = 5×5×29
As the factors of 725 are not in pair so it is not a perfect square
(ii) 190 = 2×5×19
Factor of 190 are not in pair so it is not a perfect square
(iii) 841 = 29 ×29
Factor of 814 are in pair so 841 is a perfect square
(iv) 1089 = 3×3×11×11
As the factor of 1089 are in pair so it is a perfect square
Learn more
841 and 1089 a perfect square?
Examine:(With correct steps)
Using the prime factorization method find which of the following numbers are perfect squares 4225 second 1089 please answer me the solution
Answer:
1 find the square of the