Multiple Choice Question (MCQ)

In the figure, if y >60 and AB = BC, which of the following must be true?

I. \alpha +y>180\degree

II. y>z

III. \alpha=y+z

  1. ×

    I only

  2. ×

    II only

  3. ×

    III only

  4. ×

    I and II

  5. II and III

Steven Zheng posted 2 months ago


Answer

  1. \because y>60\degree


    \therefore x= z <60\degree , II is the choice.


    \because \alpha = x+y

    and

    x=z

    \therefore \alpha = y+z , III is the choice

Steven Zheng posted 2 months ago

Scroll to Top