Home
Class 12
MATHS
In triangle ABC, If cos B=a/(2c), then t...

In triangle ABC, If cos B=`a/(2c)`, then the triangle is-

A

equilateral

B

isosceles

C

right angled

D

scalene.

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLE

    CHHAYA PUBLICATION|Exercise Very Short Answer Type Questions|20 Videos
  • PROPERTIES OF TRIANGLE

    CHHAYA PUBLICATION|Exercise Short Answer Type Questions|28 Videos
  • PROPERTIES OF TRIANGLE

    CHHAYA PUBLICATION|Exercise Assertion- Reason Type:|2 Videos
  • PRODUCTS OF TWO VECTORS

    CHHAYA PUBLICATION|Exercise Sample Questions for Competitive Examination (Assertion - Reason Type )|2 Videos
  • QUADRATIC EQUATIONS

    CHHAYA PUBLICATION|Exercise Sample Question for Competitive Exams (Assertion- Reason Type)|2 Videos

Similar Questions

Explore conceptually related problems

If in a triangle ABC, b sin B = c sin C, then the triangle is-

If in triangle ABC,cot(A/2)=(b+c)/a, then the triangleABC is

In a triangle ABC if sinAsinB=(ab)/(c^(2)) , then the triangles is

If in triangle ABC cosA/cosB =a/b then triangle ABC is

If in a triangle ABC, sin^2A+sin^2B+sin^2C=2 then the triangle is always

In a triangle ABC,sin A-cos B=cosC,then angle B is

If in a triangle ABC, A=45^(@) , B=75^(@), then the value of (a+sqrt2c) is-

In a triangle ABC if b=2, B=30^(@), then the area of the circumcircal of triangle ABC in square units is-

In a triangle ABC, if 3a = b+c, then the value of cot ""(B)/(2) cot ""C/2 is-

In a triangle ABC, a=2 cm, b=3 cm and c=4 cm, then the value of cos A is-