Question

A triangle has two angles measuring 78º and 43º . What is the measure of the third angle?

Answer 1

would it be 121

Answer 2

In a triangle the sum of the angles is 180°, so
180=78+43+x
(It can't possily be 121)

Answer 3

A triangle has three angles and all the three of the them add upto 180 degrees
(in any damn triangle)

Answer 4

So,
180=78+43+third angle

78+43=121

So,
180=121+third angle
180-121=third angle
59= third angle

Answer 5

@╰☆╮Openstudier╰☆╮ I know it seems redundant in most cases, but try to hint the answer rather than give it away in the future :)

Answer 6

Fine @Quantaliinuxite