Question

Triangle KNM is shown.

Triangle K N M is shown. Angle M K N is 25 degrees. Angle K N M is 130 degrees. Angle N M K is 25 degrees.

What is true about the sides of KNM?

KN = NM
KN + NM = KM
KM = 2(NM)
KN = One-halfKM

Answer 1

KN = NM.

Reason: The angles at K and M are both 25°, so the triangle is isosceles with the sides opposite those equal angles (MN and KN) equal.