trapezoid, parallelogram, and rhombus (people call it the diamond)
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A rhombus, trapezoid or parallelogram could all contain a 45 degree vertex. Squares and rectangles only have 90 degree vertices.
Most quadrilaterals. The only exceptions are rectangles (including squares).
A rhombus, trapezoid or parallelogram could all contain a 45 degree vertex. Squares and rectangles only have 90 degree vertices.
yes, a right triangle can have an angle of 45 degrees
The 3 interior angles are 90 degrees, 45 degrees and 45 degrees