Quadrilaterals — Engineering Board Exam Practice Questions

6 free engineering board exam reviewer questions on Quadrilaterals (Plane Geometry), each with the correct answer and a worked solution.

  1. Find the area of a trapezoid with parallel sides 8 cm and 14 cm and height 6 cm.
  2. A rhombus has diagonals of 12 cm and 16 cm. Find its area.
  3. Find the length of the diagonal of a rectangle with sides 9 cm and 12 cm.
  4. A parallelogram has sides of 10 cm and 14 cm, with an included angle of 60°. Find its area.
  5. Find the sum of the interior angles of any quadrilateral.
  6. A cyclic quadrilateral has sides 5, 6, 7, and 8. Using Brahmagupta's formula, find its area.