Question

help me with geometry

Answer 1

Regular triangle

A regular polygon has angles of the same length.

We know that the inner angles' sum of a polygon depends on its number of sides. It is given by the formula:

180º (n - 2) where n is the number of sides.

In this case, the triangle has 3 sides, then n = 3:

180º (n - 2)

= 180º (3 - 2)

= 180º (1)

= 180º

then if we add all its angles it will result in 180º

Since all its angles have the same measure and it has 3, then

$y=\frac{180}{3}=60$

Then, y = 60º

Now, we can find x

Then

x + 60º = 180º

Then, x = 120º