Answer:
90
42
42
48
48
Explanation:
The diagonals of a rhombus are perpendicular.
m<1 = 90°
m<5 = 48° (alternate interior angle with 48°)
m<4 = 48° (the diagonals bisect opposite angles)
m<2 = 42° (acute angles of a right triangle are complementary)
m<3 = 42° (the diagonals bisect opposite angles)