Question

In triangle ABC, AB=5 cm, BC=12 cm and angle ABC=90 degree, calculate the length of AC.

Answer 1

triangle ABC have angle ABC 90 degree. therefore the triangle ABC is right angled triangle.
Therefore, In triangle ABC,
by phyathagoras theorem,
AC ¡Á AC =AB¡ÁAB BC ¡ÁBC
AC ¡Á AC = 5¡Á5 12¡Á12
= 25 144
=169
Therefore, AC =13

Answer 2

ac=13