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Standard IX
Mathematics
Sum of Opposite Angles of a Cyclic Quadrilateral
Question 10Ex...
Question
Question 10
Explain how this figure is a trapezium. Which of its two sides are parallel?
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Solution
Here,
∠
M
+
∠
L
=
100
∘
+
80
∘
=
180
∘
[Sum of interior opposite angles is
180
∘
]
∴
NM and KL are parallel.
Hence, KLMN is a trapezium.
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Sum of Opposite Angles of a Cyclic Quadrilateral
Standard IX Mathematics
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