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Byju's Answer
Standard VII
Mathematics
Angle Sum Property of a Triangle
The angles of...
Question
The angles of the triangle are 3x–40, x+20 and 2x–10 then the value of x is_________.
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Solution
Sum of angles in a triangle
=
180
0
i.e,
(
3
x
−
40
)
+
(
x
+
20
)
+
(
2
x
−
10
)
=
180
0
6
x
−
30
=
180
0
6
x
=
210
0
x
=
35
0
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