NCERT - Mathematics

Book: NCERT - Mathematics

Chapter: 3. Understanding Quadrilaterals

Subject: Maths - Class 8th

Q. No. 6 of Exercises 3.3

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

We know,

Sum of adjacent angles = 180°

A + B = 180o

2A = 180o (A = B)

A = 90o

B = A = 90o

C = A = 90o (Opposite angles of parallelogram)

D = B = 90o (Opposite angles of parallelogram)

Hence, each angle of the parallelogram measures 90o


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