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User Dkol
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1 Answer

7 votes

Answer:

∠ O = 55° , ∠ A = 90°

Explanation:

2

the figure has opposite sides parallel and is therefore a parallelogram.

• opposite angles in a parallelogram are congruent, then

∠ O = ∠ Q = 55°

3

the sum of the interior angles of a quadrilateral is 360°

sum the angles and equate to 360°

∠ A + 70° + 110° + 90° = 360°

∠ A + 270° = 360° ( subtract 270° from both sides )

∠ A = 90°

User MaMiFreak
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