Identify the geometric shapes and the given angle.

The image shows two triangles. The larger triangle has vertices labeled A and C, with a third vertex at the top. Inside the larger triangle, there is a smaller triangle with a vertex labeled O. The angle at vertex O within the smaller triangle is given as 124°. The sides OA and OC of the smaller triangle are marked with double tick marks, indicating they are equal in length. This means triangle OAC is an isosceles triangle.

Shapes identified:

• Two triangles.
• The smaller triangle OAC is an isosceles triangle.

Given angle:

• ∠AOC = 124°