Question
Download Solution PDFवर्तुळाच्या त्रिज्याखंडाचे क्षेत्रफळ 66 सेमी2 आहे आणि त्रिज्याखंडाचा कोन 60° आहे. तर वर्तुळाची त्रिज्या शोधा.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेले आहे:
वर्तुळाच्या त्रिज्याखंडाचे क्षेत्रफळ 66 सेमी2 आहे आणि त्रिज्याखंडाचा कोन 60° आहे.
वापरलेली संकल्पना:
त्रिज्याखंडाचे क्षेत्रफळ = πr2 × θ/360°
θ = त्रिज्याखंडाचा कोन
r = त्रिज्या
गणना:
प्रश्नानुसार,
\(\rm\frac{60^o}{360^o} × π r^2\) = 66
⇒ πr2 = 66 × 6
⇒ 22/7 × r2 = 6 × 11 × 6
⇒ r2 = 126
⇒ r = 3\(\sqrt14\) सेमी
म्हणून, त्रिज्या= 3\(\sqrt14\) सेमी
∴ वर्तुळाची त्रिज्या 3\(\sqrt14\) सेमी आहे.
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