A quadrilateral in which a pair of opposite sides are parallel is:
Trapezium
A trapezium is defined as a quadrilateral with exactly one pair of opposite sides parallel. A parallelogram, rhombus, and rectangle each have both pairs of opposite sides parallel, so they do not fit this description.
What is the value of AC 2– BD 2
What is the point of intersection of the diagonals?
What is the area of the parallelogram?
ABCD is a cyclic quadrilateral. Diagonals BD and AC intersect each other at E. If ∠BEC = 138° and ∠ECD = 35°, then what is the measure of ∠BAC?
A circle is inscribed in a quadrilateral ABCD, touching sides AB, BC CD and DA at P, Q, R and S, respectively. If AS = 6 cm, BC = 12 cm, and CR = 5 cm, then the length of AB (in cm) is: