## Realated Questions

P, Q, S and R are points on the circumference of a circle of radius r, such the PQR is an equilateral triangle and PS is a diameter of the circle. What is the perimeter of the quadrilateral PQSR?

In the figure given below, ABCD is a rectangle. The area of the isosceles right triangle ABE = 7 cm

^{2}, EC = 3(BE). The area of ABCD (in cm^{2}) is :What is the number of distinct triangles with integral valued sides and perimeter 14?