Question

now, to make sure all of your videos attract an increase in viewership, you want to redesign your channels backdrop and thumbnails to make them more visually appealing.
youre considering a number of different shapes such as circles, triangles, squares, and other parallelograms.
which of these shapes doesnt have any parallel sides?
square
equilateral triangle
rectangle
parallelogram

Explanation:

A square has two pairs of parallel sides. A rectangle has two pairs of parallel sides. A parallelogram has two pairs of parallel sides. An equilateral triangle has no parallel sides as its three sides intersect with each other.

Answer:

B. Equilateral triangle