Is 84/45 a irrational repeating decimal or just a irrational one

A rational number is a number that can be expressed as the ratio of two integers. It's general form is where a and b are integers and b does not equal 0.

Since is a ratio of two integers, it is a rational number.

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