If R be circum-radius of `a Delta,` then circum-radius of a pedal `Delta` is

If R be circum-radius of DeltaABC, then circum-radius of a pedal Delta is

The in-radius of pedal Delta of a DeltaABC is

The in-radius of pedal Delta of a DeltaABC is

The circum radius of a right angled triangle is

The circum-radius of an equilateral triangle is 8 cm. The in-radius of the triangle is

If R be the circum radius and r the in radius of a triangle ABC, show that Rge2r

If R be the circum radius and r the in radius of a triangle ABC, show that Rge2r

Find the area, circum-radius and in-radius of the pedal triangle.

In a triangle ABC , let angleC=(pi)/2 . If r is the in-radius and R is the circum-radius of the triangle , then 2 (r + R) is equal to