fa-calculator Geometry

Explanation: The sum of interior angles of any quadrilateral is 360°. Formula: (n-2) × 180° where n = number of sides. (4-2) × 180° = 360°.

Explanation: A hexagon has 6 sides. Common shapes: triangle (3), quadrilateral (4), pentagon (5), hexagon (6), heptagon (7), octagon (8).

Explanation: The volume of a cube with side a is V = a³. The surface area of the same cube is 6a².

Explanation: The Pythagorean Theorem states: c² = a² + b², so c = ?(a² + b²). This applies only to right-angled triangles.

Explanation: The area of a circle is A = ?r², where r is the radius. The circumference (perimeter) is 2?r. These are fundamental circle formulae.