If in `DeltaABC, a =3, b = 5, c = 7` find the greatest angle.

In DeltaABC , a=4, b=5 and c=6, prove that the greatest angle is twice the least angle.

In DeltaABC , a=5, b=7, c=8, find cosB/2

In DeltaABC , if a=2, b=3, c=4, find cosA.

In a DeltaABC , if a = 4, b = 5 , c = 6 then angle C is equal to

If in any Delta ABC,a:b:c=4:5:6, prove that the greatest angle is doule the smalles angle

The sides of a triangle are 3 cm, 5 cm and 7 cm. Find the greatest angle of the triangle.

In DeltaABC, if b=7, c=24, a=25, find angleA .

In DeltaABC , a=7, b=5 and c=8, then find the value of cos2B.

(i) If a + b + c = 5 , (a, b, c gt 0) , find the greatest value of a^(3) b^(2) c^(4) . (ii) Find the greatest value of (5 - x)^(2) (x -2)^(2) , given 2 lt x lt 5 .