The diagram shows two pairs of parallel lines. The measure of angle A is 102. The measure of angle C is *blank* degrees, and the measure of angle D is *blank* degrees. options:
102, 88, 82, 78.

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct

31/6= 19/6 19/6 *1/7=19/42