The Winter Triangle is a shape that connects the brightest stars in the night sky.

In linear algebra, triangular matrices play a very important role.

There is a complex love triangle between them.

He is good at solving trigonometry problems.

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.

Traffic cones have been set up due to road construction.

He was drawing a figure using a set square.

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