Between which two integers is

The square root of some numbers (for example the number 60) is an irrational number that never terminates or repeats (7.745 966 692 ...). Benchmark numbers can be used to state that the square root of 60 is between 6 and 7. The square root of 60, estimated to two decimal places is 7.75.

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