If the sides of a triangle are b - 3a + 2c , a + 3b - 3c and 2a - b + c , then find its perimeter .

In a triangle ABC, if a = 2, b = 3 and c=4 , then cos A is equal to

Simplify : ( 2a - 3b + 3c ) ( 4a + 2b - c )

In A B C ,= if (a+b+c)(a-b+c)=3a c , then find /_Bdot

If the angles A, B, and C of a triangle ABC are in AP and the sides a, b and c opposite to these angles are in GP, then a^2, b^2 and c^2 a are related as

If a, b, c are sides of a triangle and a^2+b^2=c^2 , then name the type of triangle. a) Obtuse angled triangle b) Acute angled triangle c) Right angled triangle d) Equilateral triangle

If A = (-7, 3], B = [2, 6] and C = [4, 9] then find A - B =