in the exact angle PQRS, the side PQ is of length 2 and the side QR is length 4. points T and U lie inside the rectangle so that PQT and RSU are equilateral triangles. what is the area of quadrilateral QRUT

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.