हिंदी

If each side of an equilateral triangle is halved, its area will be ______.

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प्रश्न

If each side of an equilateral triangle is halved, its area will be ______.

विकल्प

  • halved

  • four times

  • unaltered

  • one-fourth

MCQ
रिक्त स्थान भरें
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उत्तर

If each side of an equilateral triangle is halved, its area will be one-fourth.

Explanation:

The area of an equilateral triangle is proportional to the square of its side length (s2). When each side is halved `s/2`, the new area is scaled by \[\left(\frac{1}{2}\right)^2 = \frac{1}{4}\], which means the area becomes one-fourth of the original.

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अध्याय 19: Area and Perimeter of Plane Figures - Exercise 19 (A) [पृष्ठ २७५]

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सेलिना Concise Mathematics [English] Class 9 ICSE
अध्याय 19 Area and Perimeter of Plane Figures
Exercise 19 (A) | Q 1. (b) | पृष्ठ २७५
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