Question

what is the value of p?

Explanation:

Step1: Recognize the triangle type

Since two sides of the triangle \( \triangle QRS\) are marked as equal (the red tick - marks), \( \triangle QRS\) is an isosceles triangle. In an isosceles triangle, the angles opposite the equal sides are equal.

Step2: Use the angle - sum property of a triangle

The sum of the interior angles of a triangle is \(180^{\circ}\). Let's assume the triangle is equilateral (a special case of isosceles where all sides are equal). If all sides are equal (as indicated by the tick - marks on all three sides in a proper equilateral - marked triangle, and the problem likely implies this), then each angle \(p\) is given by the formula \(p=\frac{180^{\circ}}{3}\)

$$p = 60^{\circ}$$

Answer:

\(60\)