हिन्दी में पढ़ेंHome › Formulas › Circle › Diameter form
Diameter form
(x − x₁)(x − x₂) + (y − y₁)(y − y₂) = 0
Where: x = Diameter form, x₁ = x₁, x₂ = x₂, y = y, y₁ = y₁, y₂ = y₂
Solved example
Given: x_1 = 5, x_2 = 10, y = 4, y_1 = 3, y_2 = 8
Find: x (Diameter form)
- Formula: (x - x₁)·(x - x₂) + (y - y₁)·(y - y₂) = 0
- Rearranged for x: x = x₁/2 + x₂/2 - √(x₁² - 2·x₁·x₂ + x₂² - 4·y² + 4·y·y₁ + 4·y·y₂ - 4·y₁·y₂)/2
- Substitute the values: x = 10/2 + 5/2 - √(10² - 2·10·5 + 4·3·4 - 4·3·8 - 4·4² + 4·4·8 + 5²)/2
- Rearranged for x: x = x₁/2 + x₂/2 + √(x₁² - 2·x₁·x₂ + x₂² - 4·y² + 4·y·y₁ + 4·y·y₂ - 4·y₁·y₂)/2
- Substitute the values: x = 10/2 + 5/2 + √(10² - 2·10·5 + 4·3·4 - 4·3·8 - 4·4² + 4·4·8 + 5²)/2
- Result: x = 4.298438 ; x = 10.701562
Answer: x = 4.298438
Calculator
How to calculate Diameter form
- Write down the formula: (x − x₁)(x − x₂) + (y − y₁)(y − y₂) = 0.
- Note the known values (x₁, x₂, y, y₁, y₂).
- Substitute them and simplify to find x.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Diameter form?
The formula is (x − x₁)(x − x₂) + (y − y₁)(y − y₂) = 0, where x = Diameter form, x₁ = x₁, x₂ = x₂, y = y, y₁ = y₁, y₂ = y₂.
What is Diameter form when x_1 = 5, x_2 = 10, y = 4, y_1 = 3, y_2 = 8?
x = 4.298438. Substitute the values into (x − x₁)(x − x₂) + (y − y₁)(y − y₂) = 0 and simplify.