A rectangle has perimeter (46\text{ cm}) and area (120\text{ cm}^2). What is its length?

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Answer and explanation

Correct answer: (15\text{ cm})

If the length is (x), the breadth is (23-x) and (x(23-x)=120). The roots are (8) and (15), so the length is (15\text{ cm}).

What is the correct answer to this question?

(15\text{ cm})

Why is this the correct answer?

If the length is (x), the breadth is (23-x) and (x(23-x)=120). The roots are (8) and (15), so the length is (15\text{ cm}).

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Word Problems and Applications.

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