Linevin
contestada

In circle L, points E and F lie on the circle such that E, F and L are not collinear. If LE, LF and EF are drawn then which of the following must be true about LEF?
(1) It is a right triangle.
(2) it is and isosceles triangle.
(3) it is an equilateral triangle.
(4) it is an obtuse triangle.​