The name of the person is not recorded but the fact was known well before Euclid's time.
There are 180 degrees in every plane triangle.
Each triangle has 180 degrees on the inside angles.
A triangle equals to 180 degrees
180 degrees in any plane triangle.
there are 180 degrees in a triangle all together
The information was certainly known to Euclid.
There are 180 degrees in every triangle.
There is 180 degrees in every triangle.
There are 180 degrees in every plane triangle.
because an isosceles triangle or any kind of triangle is 180 degrees.
There are 180 degrees in a triangle.
There are 180 degrees in a triangle.
Yes
every triangle has 180 degrees, irrespective of its shape.
there are 180 degrees in a triangle all together
Each triangle has 180 degrees on the inside angles.
180 degrees in any plane triangle.