1. A quadrilateral has three interior angles measuring $100°$, $75°$, and $85°$. What is the measure of the fourth angle in degrees? ___
2. The first three angles of a quadrilateral are $65°$, $115°$, and $70°$. The measure of the fourth angle is ___ degrees.
3. According to its definition, how many sides does a quadrilateral have?
4. A garden plot is shaped like a quadrilateral. Three of its corner angles are $95°$, $105°$, and $80°$. What is the measure of the fourth corner angle in degrees? ___
5. Is it true that the sum of the interior angles is $360°$ for every quadrilateral, including squares, rectangles, and irregular shapes?
6. A quadrilateral has interior angles measuring $130°$, $90°$, and $55°$. Find the measure of the missing fourth angle in degrees. ___
7. Which of the following sets of angles CANNOT be the interior angles of a quadrilateral?
8. A shape has four equal sides and four right angles. The most specific name for this quadrilateral is a ___.
9. A shape has two pairs of equal-length sides, and the equal sides are adjacent to each other. What is this quadrilateral called?
10. A parallelogram has all four sides of equal length. If it does not necessarily have right angles, the most specific name for this shape is a ___.