Question

please calculate the lettered angles​

Answer 1

X=70 and Y=40
Therefore X+Y=110

Answer 2

Answer:

opposite angles of parallelogram is equal so angle c= angle a = 70°

Let's consider two triangles in this parallelogram with having a side in common

both are isocles triangles

Isocles triangles have their base angles equal

so y= 70°

and x= 180-70+70= 40°

Step-by-step explanation:

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