Shapes

Front

What is a circle?

Back

A circle is a shape consisting of all points in a plane that are at a given distance from a fixed point, called the center.

Front

What are the properties of a pentagon?

Back

A pentagon is a five-sided polygon. The sum of its interior angles is 540 degrees.

Front

What defines a trapezoid?

Back

A trapezoid is a four-sided figure (quadrilateral) with at least one pair of parallel sides.

Front

What are the characteristics of a triangle?

Back

A triangle is a three-sided polygon. The sum of its interior angles is always 180 degrees.

Front

What is a rhombus?

Back

A rhombus is a type of polygon that is a quadrilateral with all four sides of equal length.

Front

How do you calculate the area of a circle?

Back

The area of a circle is calculated using the formula A = πr², where r is the radius.

Front

What is the formula for the perimeter of a pentagon?

Back

The perimeter of a pentagon is the sum of the lengths of its five sides.

Front

How do you find the area of a trapezoid?

Back

The area of a trapezoid can be calculated using the formula A = 1/2 * (b1 + b2) * h, where b1 and b2 are the lengths of the two parallel sides and h is the height.

Front

What types of triangles exist based on their angles?

Back

Triangles can be classified as acute (all angles less than 90°), right (one angle equal to 90°), or obtuse (one angle greater than 90°).

Front

What is the difference between a rhombus and a rectangle?

Back

A rhombus has all sides of equal length, while a rectangle has opposite sides that are equal in length and all angles are right angles.