Question

Explain the three types of triangles based on their angles. [2 MARKS]

Answer 1

Obtuse angled : 1 Mark
Acute angled : 0.5 Mark
Right angled : 0.5 Mark

Three types of triangle based on angles are:
(i) A triangle is called Obtuse angled when one of the sides has an angle greater than 90${}^o$.
(ii) If all angles of the triangle are less than 90${}^o$, it's called an Acute angled triangle.
(iii) If one of the angles is 90${}^o$, it's called a Right angled triangle.