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°