Question

which triangle is similar to triangle 1? triangle 1 has angles 48° and 110°. then there are four option triangles with some angles shown.

Explanation:

Answer:

First, calculate the third angle of Triangle T: $180^\circ - 40^\circ - 110^\circ = 30^\circ$. The triangle with angles $30^\circ$, $40^\circ$, $110^\circ$ (the third option from left: the triangle with $30^\circ$ and $110^\circ$ marked) is similar to Triangle T.