88. Adjacent angles of a parallelogram are __________. 88. Adjacent angles of a parallelogram are __________. July 17, 2021 Category: Chapter 3 - Understanding Quadrilaterals , Chapter 4 - Practical Geometry , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related 82. The adjacent sides of a parallelogram are 5 cm and 9 cm. Its perimeter is __________.63. A quadrilateral that is not a parallelogram but has exactly two opposite angles of equal measure is __________.6. Two adjacent angles of a parallelogram have equal measure. Find the measure of each of the angles of the parallelogram.