Question

In rhombus abcd angle a equal to angle b "minus" 30 degree then find angle c​

Answer 1

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Answer 2

then c is equal to d therefore ,c=d=x

so,a+b+x+x=360(angle sum property)

a+b+2x=360

30+30+2x=360

60+2x=360

2x=360-60

2x=300

x=300/2

x=150

therefore,c=150