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3 years ago

Help plz all my points

Mathematics

1 answer:

dimaraw [331]3 years ago

4 0

9514 1404 393

Answer:

A: ∠W'Z'Y' = 60°; angles aren't changed by rotation

B: W'(-3, 6), X'(9, 6), Y'(8, 1), Z'(-4, 1)

Step-by-step explanation:

<u>Part A</u>:

Angle WZY is the supplement of the given angle ZWX, so is ...

∠WZY = 180° -120° = 60°

Rotation about the origin (or anywhere else) does not change angles. The new parallelogram will have ...

∠W'Z'Y' = 60°

<u>Part B</u>:

The transformation right 2 and up 3 can be described by ...

(x, y) ⇒ (x +2, y +3)

Then the translated vertices are ...

W(-5, 3) ⇒ W'(-3, 6)

X(7, 3) ⇒ X'(9, 6)

Y(6, -2) ⇒ Y'(8, 1)

Z(-6, -2) ⇒ Z'(-4, 1)

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