Question

Please solve this question according to ICSE class 9, of possible. Otherwise, only please solve it.( This is related to Congruency of Triangles )

Answer 1

Given data:

ABC is a triangle such that,

The triangle will look like this,

The given traingle is a right angle tringle since one of the angle is 90 degree.

to find the length of the side AC we use the phythagoras theorem, that is,

`AC^2=AB^2+BC^2`

now subsitute the values of sides respectively,

`\begin{gathered} AC^2=5^2+12^2 \\ AC=\sqrt[]{25+144} \\ AC=\sqrt[]{169} \\ AC=13 \end{gathered}`

Thus, the length of AC = 13.