Question

0.9 The sides of a certain triangle are given below. Find, which of them is
a right-triangle
1) 15 cm, 20 cm ana 12 cm
2) 6m, 9m and 13m​

Answer 1

Answer:

using Pythagorean theorem

sum of squares of 2 sides is equal to square of the hypotenuse

apply this rule

but from given options there are sides that form right angle triangle

${15}^{2} + 12 {}^{2} ≠ {20 }^{2} \\ 9 {}^{2} + {6}^{2} ≠ {13}^{2}$

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