Respuesta :

The midpoint between the 2 points is (6,5), so you can add 7 to 5 to find the other coordinate, since 5--2=7. The coordinate is (2,12)
the triangle is isosceles so the sides should be equally distant from (6,5)
the distance between (6,5) and (2,-2) is √65. it can be found using the distance formula. so the distance between (6,5) and (2,x) should be √65