वर्गमूल सर्पिल में (18)वें समकोण त्रिभुज का कर्ण किस वर्गमूल को दर्शाएगा?
In a square root spiral, which square root will the hypotenuse of the (18)th right triangle represent?
Explanation opens after your attempt
C. \(\sqrt{19}\)
Concept
The hypotenuse of the (r)th triangle is \(\sqrt{r+1}\). Therefore, the (18)th triangle has hypotenuse \(\sqrt{19}\).
Why this answer is correct
The correct answer is C. \(\sqrt{19}\). The hypotenuse of the (r)th triangle is \(\sqrt{r+1}\). Therefore, the (18)th triangle has hypotenuse \(\sqrt{19}\).
Exam Tip
(r)वें त्रिभुज का कर्ण \(\sqrt{r+1}\) होता है। इसलिए (18)वें त्रिभुज का कर्ण \(\sqrt{19}\) है।
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