Answer:
In a parallelogram, opposite angles are equal. Therefore, abc = cda and bca = dcb
Given abc = 3a and bca = 2a,
We know that cda = abc = 3a (opposite angles of a parallelogram)
Also, dcb = bca = 2a (opposite angles of a parallelogram)
The sum of all angles of a quadrilateral is 360 degrees.
Therefore, abc + bca + cda + dcb = 360 degrees
Substituting the values we have, we get:
3a + 2a + 3a +2a = 360
10a = 360
a = 36
Therefore, the value of a is 36.
Explanation: