Question

answer
scalene obtuse
scalene right
scalene acute
isosceles acute
isosceles right
equilateral
isosceles obtuse

Explanation:

Step1: Check the type of angles

There is a \(90^{\circ}\) angle, so it is a right - angled triangle.

Step2: Check the side lengths

Two sides \(ST = SU=4.2\). In a triangle, if two sides are equal, it is an isosceles triangle.

Answer:

Isosceles Right