Problem 279
Triangles with integral sides and an integral angle
How many triangles are there with integral sides, at least one integral angle (measured in degrees), and a perimeter that does not exceed 108?
有一个整数角的整数边三角形
有多少个三角形，其三边长均为整数，至少有一个角是整数（以度为单位），并且周长不超过108？