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Question

In the following parallelogram, find the value of x.
  1. 11° 
  2. 22° 
  3. 33° 
  4. 44° 


Solution

The correct option is B 22° 
Given that the quadrilateral is a parallelogram.
We know that, in a parallelogram the opposite angles are equal.

(7+4x)o=81o
(4x7)o=81o 
4x=81o+7o=88o
4x=88o
x=88o4
x=22o

Hence the value of x is 22o

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