Question

which of the attributes below are shared by both triangles and squares? select all that apply. a) 4 sides b) shape is closed c) all sides are straight lines d) 2 sets of parallel sides

Explanation:

• Option A: Triangles have 3 sides, squares have 4 sides, so this is not shared.
• Option B: Both triangles and squares are closed shapes (they enclose a space), so this is shared.
• Option C: Both triangles and squares are made of straight line segments as their sides, so this is shared.
• Option D: Triangles have no parallel sides (in general triangles; some special triangles like isoceles may have none or one pair, but not 2 sets), while squares have 2 sets of parallel sides. So this is not shared.

Answer:

B. Shape is closed, C. All sides are straight lines