Home
Class 12
MATHS
Internal bisector of /A of triangle ABC ...

Internal bisector of `/_A` of triangle ABC meets side BC at D. A line drawn through D perpendicular to AD intersects the side AC at E and the side AB at F. If a, b, c represent sides of `DeltaABC`, then

A

AE is H.M of b and c

B

`AD=(2bc)/(b+c)"cos"(A)/(2)`

C

`EF=(4bc)/(b+c)"sin"(A)/(2)`

D

triangle AEF is isosceles

Text Solution

Verified by Experts

The correct Answer is:
(a,b,c,d)
Promotional Banner

Topper's Solved these Questions

  • SOLUTION OF TRIANGLES

    MTG-WBJEE|Exercise WB JEE (Previous Years Questions) CATEGORY 1 : Single Option Correct Type|5 Videos

  • SOLUTION OF TRIANGLES

    MTG-WBJEE|Exercise WB JEE (Previous Years Questions) CATEGORY 2: Single Option Correct Type|1 Videos

  • SOLUTION OF TRIANGLES

    MTG-WBJEE|Exercise WB JEE WORKOUT (CATEGORY 2 : single Option Correct Type )|15 Videos

  • SETS , RELATIONS AND FUNCTIONS

    MTG-WBJEE|Exercise WB JEE PREVIOUS YEARS QUESTIONS (SINGLE OPTION CORRECT TYPE)|44 Videos

  • STATISTICS AND PROBABILITY

    MTG-WBJEE|Exercise WB JEE Previous Years Questions ( CATEGORY 3 : One or More than One Option Correct Type ( 2 Marks) )|3 Videos

Similar Questions

Explore conceptually related problems

In Delta ABC, AD and BE are perpendiculars from A and B to the sides BC and AC, then

In an isosceles triangle ABC with AB=AC a circle passing through B and C intersects the sides AB and AC at D and E respectively. Prove that DE|CB.

In an isosceles triangle ABC with AB=AC , a circle passing through B and C intersects the sides AB and AC at D and E respectively.Prove that DEBC

E is the mid-point of the side AD of the trapezium ABCD with AB||DC . A line through E drawn parallel to AB intersects BC at F. then

In Delta ABC,/_ABC=120^(@),AB=3 and BC=4. If perpendicular constructed on the side AB at and to the side BC at C meets at D then CD is equal to