Answer:
m∠1 = 30°
Step-by-step explanation:
Properties of a rhombus,
1). Sum of adjacent angles is 180°.
2). Diagonals bisects the angles of a rhombus
By property - (1)
m∠M + m∠N = 180°
120° + m∠N = 180°
m∠N = 180 - 120
= 60°
By property - (2)
Diagonal PM will bisect the angle M.
m∠1 = m∠2
m∠1 = [tex]\frac{1}{2}(\angle N)[/tex]
= [tex]\frac{1}{2}(60)[/tex]
= 30°
