# maths-urgently 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

1. Ritika

1. Isosceles

2. Anonymous

Put B=C

3. Anonymous

Put B=C

4. Anonymous

AFTER PUTTING AND SIMPLIFYING WE ARE GETTING AB=AC THEN TWO SIDES ARE EQUAL THEN IT IS A ISOSCELES TRIANGLE

## Similar Questions

1. ### 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
2. ### 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 …
3. ### mathematics

in triangle abc if acosA= bcosB then how to prove the triangle is isosceles or right angled
4. ### maths-urgently 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
5. ### maths-urgently 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
6. ### maths-urgently 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.
7. ### maths

find the perimeter of an isosceles right angled triangle having 5000m
8. ### maths

the square of the hypotenuse of an isosceles right angled triangle is 98 sq. cm. what is the length of each side ?
9. ### math

show that abc is a right angled isosceles triangle prove that AD>AC and AC>CD also arrange in ascending order
10. ### Trigonometry

How to divide a right angled triangle into two isosceles triangle ?

More Similar Questions