Question

plz tell what is second angle sum property of triangle

Answer 1

the second angle sum property triangle =60 if it is equivalent tringle

Answer 2

First know thatthe sum of the three sides of a triangle is 180° therefore in question we have 2 angles and we have ro find the 3rd one so we solve the question by using angle sum property which is /_a + /_b +/_c =180°
(here , /_ = angle