Question

Help with the Triangle sum theorem

Answer 1

A triangle has 3 sides in every triangle all the three sides should sum up to 180°.

In the 1st figure,

70+50+x=180 (being sum of triangle)

now 120+x=180

x=180-120

=60

Explanation:

In the 2nd figure

x is 60

60+60+60=180,

Thus explained

Answer 2

180

Explanation:

If you add 60 +60 + 60, or 60 + 50 + 70, both would add up to 180, since x = 60. This is why both triangles, have a complete of 180.