There is a complex love triangle between them.

Trigonometric functions are one of the basic concepts in mathematics.

He is good at solving problems of trigonometric functions.

He trains his deltoid muscles at the gym every day.

He yelled at me, looking at me with fury.

He was drawing a figure using a set square.

Triangulum is one of the beautiful constellations shining in the autumn night sky.

Traffic cones have been set up due to road construction.

Please throw the leftover food in the triangular sink basket in the kitchen.

I achieved a big success.