When one thinks of a triangle, likewise, it is always obtuse, right-angled or acute.
From the en.wikipedia.org
He listed the six distinct cases of a right-angled triangle in spherical trigonometry.
From the en.wikipedia.org
Then he asked her to cut each triangle in two to make four right-angled triangles in total.
From the newscientist.com
I can use three of them to make the sides of a right-angled triangle of area 10 square centimetres.
From the newscientist.com
In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
From the denverpost.com
Joe drew a right-angled triangle on an A6 file card.
From the newscientist.com
In the reproduction of the figure from Ibn Sahl's manuscript, the critical part is the right-angled triangle.
From the en.wikipedia.org
The surprisingly difficult problem is to determine which whole numbers can be the area of a right-angled triangle whose sides are whole numbers or fractions.
From the sciencedaily.com
According to this, the length of the hypotenuse of a right angled triangle in discretized space is always equal to the length of one of the two sides, in contradiction to geometry.