mathsurgently needed
posted by Anonymous .
If in a triangle ABC,
c(a+b) Cos B/2 =b(c+a) Cos C/2
then the triangle is :
1. isosceles
2. Right angled
3. isosceles or right angled
4. none of these
I want the explanation

Isosceles
Respond to this Question
Similar Questions

geometry
The triangle DEF has vertices D(1,3) E(7,1) and F(4,6). Classify the triangle as: a) isosceles or scalene b) right angled or not 
Math (Geometry)
The perimeter of right triangle ABC is equal to the perimeter of isosceles triangle DEF. The lengths of the legs of the right triangle are 6 and 8. If the length of each side of the isosceles triangle is an integer, what is the greatest … 
mathematics
in triangle abc if acosA= bcosB then how to prove the triangle is isosceles or right angled 
mathsurgently needed
If in a triangle ABC, c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is : 1. isosceles 2. Right angled 3. isosceles or right angled 4. none of these I want the explanation 
mathsurgently needed
If in a triangle ABC, c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is : 1. isosceles 2. Right angled 3. isosceles or right angled 4. none of these I want the explanation 
mathsurgently needed
In right angled triangle ABC angle B=90 degree and AB= root 34 unit. The coordinates of point B and Care (4,2)and (1,y) respectively. If area of triangle ABC = 17 sq.units, then find value of y. 
maths
find the perimeter of an isosceles right angled triangle having 5000m 
maths
the square of the hypotenuse of an isosceles right angled triangle is 98 sq. cm. what is the length of each side ? 
math
show that abc is a right angled isosceles triangle prove that AD>AC and AC>CD also arrange in ascending order 
Trigonometry
How to divide a right angled triangle into two isosceles triangle ?