Question

Which of the following sides are not of a right angled triangle ( in cm)​

Answer 1

Answer:

5cm, 9cm, 7cm

Step-by-step explanation:

$\sqrt{9x^{2}+12x^{2}}\\\sqrt{81+144} \\\sqrt{225} ​\\15cm$

In hence is the side of a right angle triangle

$\sqrt{1x^{2}+2x^{2}}\\ \sqrt{1+4}\\ \sqrt{5}$

In hence is the side of a right angle triangle

$\sqrt{5x^{2} +7x^{2} \\} \\\sqrt{25+49} \\\sqrt{74}$

In hence this ≠ 9 so it is not a side of a right triangle

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