How do you solve equations by using square roots "x2+10=0"

Well first you have to leave x by itself this will result in x2=-10 now to get the x completly by itself square root both sides this will leave you with x= square root of 10 and that would be your final answer because you cant simplify it no more

Hope this helped

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