If `Delta` be area of incircle of a triangle ABC and `Delta_1,Delta_2,Delta_3` be the area of excircles then find the least value of `(Delta_1 Delta_2 Delta_3)/(729 Delta^3)`

If Delta be area of incircle of a triangle ABC and Delta_(1),Delta_(2),Delta_(3) be the area of excircle then find the least value of (Delta_(1)Delta_(2)Delta_(3))/(729Delta^(3))

Ratio of area of the incircle to the area of triangle ABC

The ratio of the area of the incircle to the area of Delta ABC is

If Delta ABC-Delta DEF,BC=3cm,EF=4cm and area of Delta ABC=54sqcm then find the area of Delta DEF

The area of incircle of an equilateral triangle is 154cm^2 then the perimeter of the triangle is

The area of incircle of an equilateral triangle is 154\ c m^2 . The perimeter of the triangle is

Let A(0,-1),B(0,3)andC(2,1) be three points Let Delta_(1) be the area of the triangle ABC and Delta_(2) be the area of the triangle formed by the mid points of the sides of the triangle whose vertices are A,B and C such that (Delta_(1))/(Delta_(2))=(1)/(x) Find the value of x.

In Delta ABC , I is the incentre, Area of DeltaIBC, DeltaIAC and DeltaIAB are, respectively, Delta_(1), Delta_(2) and Delta_(3) . If the values of Delta_(1), Delta_(2) and Delta_(3) are in A.P., then the altitudes of the DeltaABC are in

In Delta ABC , I is the incentre, Area of DeltaIBC, DeltaIAC and DeltaIAB are, respectively, Delta_(1), Delta_(2) and Delta_(3) . If the values of Delta_(1), Delta_(2) and Delta_(3) are in A.P., then the altitudes of the DeltaABC are in