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Given ABCD slove for X ?
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Given ABCD slove for X ?

Given ABCD slove for X ?-example-1
User Nekita
by
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1 Answer

3 votes

Answer:

∠D = 180°- ∠A

∠D = 180° - (30+5x)

15+10x = 180° - 30-5x

15x = 180 - 30 - 15

15x= 135

x = 9

User IElite
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