Subject :IMO Class : Class 5
Subject :IMO Class : Class 4
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Subject :IMO Class : Class 7
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Subject :IMO Class : Class 7
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Subject :IMO Class : Class 3
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Subject :IMO Class : Class 5
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Subject :IMO Class : Class 3
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Subject :IMO Class : Class 4
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Subject :IMO Class : Class 7
Ans 1:
Ans 3:
Class : Class 7
A and B are supplementary angles(linear pair). So a+b=180. If we solve this equation, x+2+2x+4=180, we get A is 60.
Ans 4:
Class : Class 9
ANGLE A +ANGLE B=180 DEGREE
X+2+2X+4=180 DEGREE
3X+6=180
3X=180-6
3X=174
X=174/3
X=58
ANGLE A=X+2
=58+2
=60 DEGREE
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Subject :IMO Class : Class 5