Question

PLEASE HELP:)

Answer 1

<mkb because of the isosceles triangle theorem. If two sides of a triangle are congruent, it is isosceles, so the angles opposite them are also congruent. 
Hope this helps!

Answer 2

Answer:

Step-by-step explanation:

Given that a line segment BK is an angle bisector of triangle ABC.  

When the line KM intersects BC such that BM=MK

we find an isosceles triangle BMK with two sides equal

Hence by isosceles triangles theorem, two angles opposite equal sides would be equal

i.e. $m∠MBK≅m∠_BKM____$

The isosceles triangle theorem states that  If two sides of a triangle are congruent, then angles opposite those sides are congruent.