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The hypotenuse of a right triangle with its legs of lengths 3x × 4x is ______. - Mathematics

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Question

The hypotenuse of a right triangle with its legs of lengths 3x × 4x is ______.

Options

  • 5x

  • 7x

  • 16x

  • 25x

MCQ
Fill in the Blanks

Solution

The hypotenuse of a right triangle with its legs of lengths 3x × 4x is 5x.

Explanation:

Given, lengths of the legs of right angled triangle are 3x and 4x.

Now, hypotenuse = `sqrt((3x)^2 + (4x)^2)`  ...[Using Pythagoras theorem]

= `sqrt(9x^2 + 16x^2)`

= `sqrt(25x^2)`

= 5x

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Chapter 3: Square-Square Root and Cube-Cube Root - Exercise [Page 89]

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NCERT Exemplar Mathematics [English] Class 8
Chapter 3 Square-Square Root and Cube-Cube Root
Exercise | Q 14. | Page 89

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