長方形の対辺は平行している。の英語

The opposite sides of a rectangle are parallel.

The opposite sides of a square are parallel.

The opposite sides of a parallelogram are parallel.

A parallelogram is a quadrilateral formed from two sets of parallel lines.

a quadrilateral with no parallel sides

a quadrilateral with two parallel sides

A square is one type of rectangle, and a rectangle is one type of parallelogram.

a parallelogram with adjacent sides of unequal lengths

concentric circles are parallel

a quadrilateral having only two sides parallel, called trapezoid

a parallelogram with four equal sides

A square has four sides.

the base of a triangle or parallelogram, called

a polygon called regular polygon

a prism whose bases are parallelograms

a scalene triangle

a plane polygon having sides of equal length, called equilateral polygon

A square has four equal sides.

a quadrilateral whose opposite sides are both parallel and equal in length

The flange isn't at the correct angle.

a parallelogram with four right angles

the shear changed the quadrilateral into a parallelogram

The three (interior) angles of a triangle add up to [are equal to] two right angles.

an equilateral triangle

a square

ratio of the opposite to the adjacent side of a right-angled triangle

a figure whose sides are all equal

Cut a square in halves.

an equilateral triangle

all right angles are equal