Book: NCERT - Mathematics
Chapter: 3. Understanding Quadrilaterals
Subject: Maths - Class 8th
Q. No. 7 of Exercises 3.3
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7
The adjacent figure HOPE is a parallelogram. Find the angle measures x, y and z. State the properties you use to find them
As per the question,
y = 40° (Alternate interior angles)
70° = z + 40o (Corresponding angles)
70° − 40° = z
z = 30°
x + (z + 40o) = 180° (Adjacent pair of angles)
x + 70o = 180°
x = 110°
10
in Fig 3.33 if 
and 
if 
in Fig 3.34.
is there more than one method to find 
?)