Mathematics
Grade9
Easy

Question

Find the value of ‘a’.

 

  1. 12
  2. 25
  3. 24
  4. 30

hintHint:

If two or more parallel lines are cut by two transversals, then they divide the transversals proportionally.

The correct answer is: 12


    The parallel lines and transversal divides it in proportion
    a over 20 equals 9 over 15
a equals fraction numerator 20 cross times 9 over denominator 15 end fraction equals 12
    Hence, the correct option is D.

    It is called theorem of parallel lines cut by transversals proportionality.

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