A possible triangle Fran could have drawn with no congruent sides and a right angle is a right scalene triangle. For example, a triangle with sides of 3, 4, and 5 units is a right scalene triangle.
Here's a possible figure of Nathan's scalene, obtuse triangle:
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In this triangle, all sides have different lengths. Also, one angle of the triangle is obtuse, meaning it is greater than 90 degrees.
Squares and rectangles are similar in that they both have four sides, four angles, and opposite sides that are parallel. They are different in that squares have all sides of equal length, while rectangles have opposite sides of equal length.
A right trapezoid is similar to a square in that it has two pairs of parallel sides. However, a right trapezoid has only one pair of opposite sides that are congruent and four right angles, whereas a square has all sides congruent and four right angles.
Here's a possible isosceles trapezoid:
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An isosceles trapezoid has two parallel sides of equal length and two non-parallel sides of different lengths. The two angles between the parallel sides are congruent, as are the two angles between the non-parallel sides.
A regular pentagon has five sides of equal length and five angles of equal measure. All internal angles of a regular pentagon measure 108 degrees.
The attributes of a regular hexagon include having six sides of equal length and six angles of equal measure, which is 120 degrees. All six internal angles of a regular hexagon are congruent, and the sum of all internal angles is 720 degrees. An irregular hexagon, on the other hand, has sides and angles of different measures.
The shape shown in question 9 is a rhombus. A rhombus has four sides of equal length and opposite angles that are congruent. All four internal angles of a rhombus measure 90 degrees.
I already answered this in question 8.