Answer:
96.16 square in
Step-by-step explanation:
Given information: In parallelogram ABCD, AD = 12 in, m∠C = 46º, m∠DBA = 72º.
Opposite angles of a parallelogram are congruent.
According to the angle sum property, the sum of interior angles of a triangle is 180º.
Law of Sine:
Using Law of Sine we get
It means the base of parallelogram is 11.14 in.
Draw an altitude on AB from D.
In a right angle
In triangle ADE,
The height of the parallelogram is 8.632.
The area of parallelogram is
Therefore, the area of parallelogram is 96.16 square in.