63. PQR is an equilateral triangle whose side is 10 cm. What is the value of the inradius || edu214

63. PQR is an equilateral triangle whose side is 10 cm. What is the value (in cm) of the inradius of triangle PQR?
PQR एक समबाहु त्रिभुज है जिसकी भुजा 10 सेमी है । त्रिभुज PQR की अंत: त्रिज्या का मान में क्या है ?
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ram raghuwanshi