
Finding the square root of 1250 is a great way to improve your arithmetic skills. This article makes it easy to figure out how to apply long division to find the decimal value or prime factorisation to find the exact radical form.
The integer that, when multiplied by itself, generates 1250 is the square root of 1250.
Decimal Value: \approx 35.355
Radical Form (Simplest): 25\sqrt{2}
Exponential Form: (1250)^{1/2} or (1250)^{0.5}
Is 1250 a square number? No. A number like 25 (5 \times 5) or 100 (10 \times 10) is a perfect square. We receive a decimal response since no whole number times itself equals 1250.
[
\sqrt{1250} = 25\sqrt{2} \approx 35.3553390593\ldots
]
Rounded values:
3 decimal places: 35.355
5 decimal places: 35.35534
10 decimal places: 35.3553390593
Read More - Perfect Squares – Definition and Methods
The Prime Factorisation Method and the Long Division Method are the two best approaches to find the square root of 1250.
This method helps us identify the "simplest form" of the square root.
How to find the square root of 1250:
Factor 1250 into prime numbers: 1250 = 2 \times 625
625 = 5 \times 125
125 = 5 \times 25
25 = 5 \times 5
So, 1250 = 2 \times 5 \times 5 \times 5 \times 5 = 2 \times 5^4
Group the factors into pairs:
1250 = (5 \times 5) \times (5 \times 5) \times 2
Take one number from each pair out of the root:
\sqrt{1250} = 5 \times 5 \times \sqrt{2}
\sqrt{1250} = 25\sqrt{2}
If you need to find the precise decimal digits, use this method.
Step 1: Put the numbers into pairs from right to left: 12 and 50.
Step 2: Find the biggest number whose square is less than or equal to 12. That is three (3 times 3 is 9).
Step 3: Take 9 away from 12 (Remainder = 3) and bring down the next two numbers (50). Your new number is 350.
Step 4: Multiply your answer by 2 (3 \times 2 = 6). Find a number x that goes next to 6 (6x \times x) that is less than or equal to 350.
If we pick 5: 65 \times 5 = 325.
Step 5: Subtract 325 from 350. Remainder is 25.
Step 6: Add two zeros and a decimal point. Keep going!
The result is 35.355...
Read More - Basic Math Formulas Chart for Quick Study
This is a quick reference table that can help you comprehend the square root of 1250:
|
Property |
Value |
|
Exact Value |
\sqrt{1250} |
|
Simplified Radical |
25\sqrt{2} |
|
Approximate Decimal |
35.355 |
|
Type of Number |
Irrational |
The square root of 1250 appears in algebra, geometry, and quick estimation questions. Since (1250) is not a perfect square, its square root is written in exact form as (25\sqrt{2}) and in decimal form as approximately (35.355). The solved examples below show how to use this value in different question types students commonly see in homework and exams.
1) Solved Equation Example
Question: Solve (x^2 - 1250 = 0)
Solution:
(x^2 - 1250 = 0)
(x^2 = 1250)
(x = \pm \sqrt{1250})
(x = \pm 25\sqrt{2})
Using decimal form:
(x \approx \pm 35.355)
Answer: (x = 25\sqrt{2}) or (x = -25\sqrt{2})
2) Radius of a Sphere from Surface Area
Question: The surface area of a sphere is (5000\pi) square units. Find its radius.
Solution:
Surface area of sphere (= 4\pi r^2)
(4\pi r^2 = 5000\pi)
(4r^2 = 5000)
(r^2 = 1250)
(r = \sqrt{1250} = 25\sqrt{2})
Radius is always positive.
Answer: (r = 25\sqrt{2}) units (\approx 35.355) units
3) Side of a Cube from Surface Area
Question: The total surface area of a cube is (7500) square units. Find the side length.
Solution:
Surface area of cube (= 6a^2)
(6a^2 = 7500)
(a^2 = 1250)
(a = \sqrt{1250} = 25\sqrt{2})
Side length cannot be negative.
Answer: (a = 25\sqrt{2}) units (\approx 35.355) units
4) Rectangle Diagonal Example
Question: A rectangle has length (25) units and breadth (25) units. Find the diagonal.
Solution:
Using Pythagoras theorem:
(d = \sqrt{25^2 + 25^2})
(d = \sqrt{625 + 625})
(d = \sqrt{1250})
(d = 25\sqrt{2})
Answer: Diagonal (= 25\sqrt{2}) units (\approx 35.355) units
5) Simplification and Verification Example
Question: Simplify (\sqrt{1250}) and verify by squaring the result.
Solution:
(1250 = 2 \times 5^4)
(\sqrt{1250} = \sqrt{2 \times 5^4})
(\sqrt{1250} = 5^2\sqrt{2} = 25\sqrt{2})
Verification:
((25\sqrt{2})^2 = 25^2 \times 2)
(= 625 \times 2 = 1250)
Answer: (\sqrt{1250} = 25\sqrt{2})
At CuriousJr, maths is taught in a simple, fun, and stress-free way. Our Mental Maths Online Classes for students from Classes 1 to 8 help children develop a strong understanding of numbers. Through live interactive classes, easy calculation methods, and logical thinking activities, students learn to solve problems faster and more confidently.
Our dual-mentor approach ensures full support for every child. One teacher leads the live class, while the other helps with doubt solving and extra guidance after each session. With animated lessons, enjoyable challenges, and interactive activities, children remain engaged and motivated.
Parents receive regular progress updates and can join review meetings to closely follow their child’s progress.
Book a demo class today and see how CuriousJr turns screen time into effective, skill-building learning.
