Question

Side and angle properties of a parallelogram (level 2). NO LINKS!!!

Answer 1

Answer:

Hello,

If we look at the solution we can calculate this very easily

A is 40

B is 121

C=y

D=x

THe answer

x=46

y=13

z= 116

Step-by-step explanation:

Answer 2

9514 1404 393

Answer:

• x = 59°
• y = 40°
• z = 81°

Step-by-step explanation:

The marked external angle at B is "corresponding" to the internal angle BAD, so is the same measure. This means ...

  z° +40° = 121°

  z° = 81°

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Adjacent angles of a parallelogram are supplementary, so ...

  ∠CDA +∠BAD = 180°

  x° + 121° = 180°

  x° = 180° -121°

  x° = 59°

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Alternate interior angles are congruent, so ...

  y° = 40°