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Subjects
Mathematics CBSE
Class 7
Triangle and its properties
Exterior angles of a triangle
7.
Estimate the unknown value
Exercise condition:
5
m.
Calculate the value of \(a\) if the measure of exterior angle \(∠x =\)
110
\(°\), \(∠Q = (\)
3
\(a+\)
8
\()°\) and \(∠R = (a+\)
7
\()°\).
The value of
\(a\)
is
.
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