All three angles must add up to 180Ëš. The sum of interior angles in a quadrilateral is 360Ëš. In a square or rectangle, each interior angle is 90Ëš. In irregular quadrilaterals, each angle is a ...
When transforming a shape, either through translation, reflection or rotation ... Angle A and angle G are equal. Angle B and angle H are equal. Angle C and I are equal and are both right angles.
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