Answer:
1. A. contain a right angle
1. B. opposite sides are parallel
2. (c) 2 pairs of parallel sides
3. (b) 2 sides of equal length
Step-by-step explanation:
Here you are asked to find patterns and to make use of the definitions of different geometric figures.
1.
The figures in Circle A do not all have the same number of sides, or sides of the same length. However, they do all have at least one right angle.
The figures in Circle B are rectangles and parallelograms. The attributes listed in question 2 can be used here. They all have two pairs of parallel sides.
2.
As we observed in question 1, rectangles and parallelograms share the feature of 2 pairs of parallel sides.
A kite may have 2 pairs of equal-length sides. While a square and a rhombus have 4 sides of equal length, that description is not true of rectangles and parallelograms in general.
Angles in a rectangle are all 90°, while those in a parallelogram may not be. The offered descriptions of angles do not apply to apply to both shapes.
3.
An isosceles triangle has two sides equal length and two equal angles. An equilateral triangle is a special case of an isosceles triangle in which all three sides are equal, as are all three angles. The description that applies to both kinds of triangles is 2 sides of equal length.
