His repeated obtusities during the meeting frustrated everyone who expected constructive input.

The medieval scholar was criticized for obtusing his prose, preferring vague generalities to clear argument.

The students were surprised to discover several obtuse triangles in the geometry competition problems.

The field mycologist carefully noted that the fresh cap was obtusely umbonate, a feature that helped distinguish it from similar species.

The obtuse-angled triangle in the diagram made calculating the area a bit more challenging than the right triangle.

The obtuse triangle in the diagram has one angle measuring 120 degrees, which requires a different trigonometric approach.

The interior designer strategically placed mirrors to avoid creating obtuse angles that made the room feel cramped.

The surveyor measured the obtuse angle between the two roads to plan the new roundabout.

The obtuse-angular triangle on the diagram clearly showed one angle greater than ninety degrees.

In the diagram, the shaded region is part of an obtuse-angled triangle whose longest side measures 10 cm.