alleryस्पर्श बिंदु पर स्पर्श रेखा और त्रिज्या के बीच का कोण कितना होता है?
A180°
B60°
C45°
D90°
Answer & Solution
Correct answer: D. 90°
स्पर्श रेखा, वृत्त के स्पर्श बिंदु पर खींची गई त्रिज्या पर लंबवत (90°) होती है।
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