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liberstina [14]
3 years ago
12

What is the value of x? x= units

Mathematics
2 answers:
attashe74 [19]3 years ago
8 0
By Pythagoras theorem

RQ^{2}= x^{2} + 16^{2}
RS^{2}= x^{2} + 9^{2}

SQ^{2}= RS^{2}  + RQ^{2}
SQ^{2}= x^{2} + 16^{2}  + x^{2} + 9^{2}
SQ^{2}=2 x^{2} +256+81
25^{2}=2 x^{2} +337
625-337=2 x^{2}
288=2 x^{2}
144= x^{2}
x=12
Aleonysh [2.5K]3 years ago
8 0

Answer:  The value of x is 12 units.

Step-by-step explanation:  We are given to find the value of x from the figure.

We can see that triangle RSQ is a right-angled one with m∠SRQ = 90°. And RT is perpendicular to the hypotenuse SQ.

Given ST = 9 units, TQ = 16 units  and  RT = x = ?

Since ΔRSQ is a right-angled triangle with hypotenuse SQ and RT is perpendicular to SQ, so we must have

RT^2=ST\times TQ\\\\\Rightarrow x^2=9\times 16\\\\\Rightarrow x^2=144\\\\\Rightarrow x=\pm \sqrt{144}\\\\\Rightarrow x=\pm12.

Since the length of a line segment cannot be negative, so the value of of x is 12 units.

Thus, the required value of x is 12 units.

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