Solve the following problem:

Given: △SAL, SA = LA

AT − ∠bisector

Prove: m∠L = m∠S

using congruence rule

Step-by-step explanation:

Given: ΔSAL, SA = LA and AT is the bisector of

To prove:

Proof:

Two triangles are congruent if they have same shape and same size.

Consider triangles ALT and AST

AL = AS

As AT bisects ,

AT = AT (common side)

So, ( by SAS congruence rule )

Here, SAS denotes side-angle-side

(using corresponding parts of congruent triangles)

Hence proved