Question

ABC is a Triangle in which AB=3 cm, BC=5 cm and AC= 4 cm.AD is a perpendicular from A to BC.find the length of AD​

Answer 1

the answer is 11 cm of given question

Answer 2

Answer:

answer is  $\sqrt{11}$/2

Step-by-step explanation:

in given triangle

ab=3

bc=5

ac= 4

in triangle abd

$ad^{2}$ +$bd^{2}$ =$ab^{2}$ (by pythagoras theorem)

$ad^{2}$ =$ab^{2}$ - $bd^{2}$

(bd= 1/2 bc)

$ad^{2}$ = 9-(25)/4

$ad^{2}$ =( 36 -25)/4

$ad^{2}$= 11/4

ad= $\sqrt{11}$/2