Mathematics
Grade9
Easy

Question

The quadrilateral is rotated about O. What is the value of x?

  1. 2    
  2. 3    
  3. 4    
  4. 5    

Hint:

first calculate y , and then substitute value of y and then calculate x .

The correct answer is: 2


    Step 1 : Rotation is isometry.
    finding y
    2y = 6
    y = 3
    Step 2 :  with help of y calculate x
    5x = 3y + 1 (substitute y = 3)
    Step 3 :  solving for x
    5x = 3(3) + 1
    5x = 10
    x = 2
    so , x= 2 is the right answer .

    Compare corresponding sides as they are equal .

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