Two adjacent angles of a parallelogram have equal measure. Find the measure of the angles of the parallelogram.

Let each adjacent angle be x.
∴ x+x=180° ⇒ 2x=180° ⇒ x=180°/2 =90°
Hence, each adjacent angle is 90°
∴ x+x+x=180° ⇒ 3x=180° ⇒ x=60°

Class 8 Maths Chapter 3 Exercise 3.3 Solution in Video

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