1.abc is an equilateral triangle. p is a point on āc such that pbc = 46º. calculate apb. 2. an isosceles triangle is such that vertical angle is four times the size of a base angle. what is the size of a base angle? 3. the perimeter of a rectangle is 14m and the length is xm. express the breadth of the rectangle in terms of x. 4. list the elements of the following sets. a. {t: t is a subject on your timetable} b. {f: f is a factor of both 24 and 30} c. {p: p is a prime factor of 42} d. {integer y: y < - 5} e. {integer x: x > 8} f. {x: 3 < x < 5, x ɛ ɲ} g. {x: 3 < x ≤ 5, x ɛ ɲ} h. {x: - 2 < x < - 1, x ɛ ɲ}