Circle / Круг / Окружность

Vocabulary: 

Rectangle / Прямоугольник

In Euclidean plane geometry, a rectangle is any quadrilateral with four right angles

Oval / Овал

An oval (from Latin ovum, "egg") is a closed curve in a plane which "loosely" resembles the outline of an egg. In common English, the term is used in a broader sense: any shape which reminds one of an egg.

Cylinder / Цилиндр

A cylinder (from Greek κύλινδρος – kulindros, "roller, tumbler") is one of the most basic curvilinear geometric shapes, the surface formed by the points at a fixed distance from a given line segment, the axis of the cylinder.

Cube / Куб

In geometry, a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex.

Trapezoid / Трапеция

In Euclidean geometry, a convex quadrilateral with at least one pair of parallel sides is referred to as a trapezoid in American and Canadian English but as a trapezium in English outside North America. 

Parallelogram / Параллелограмм

In Euclidean geometry, a parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.

Triangle / Треугольник

A triangle is one of the basic shapes in geometry: a polygon with three corners or vertices and three sides or edges which are line segments. 

а) angle  b) circumference  c) diameter   d) height   e) length   f) radius   g) volume   h) width