Explanation

4 is the highest number that divides 20, 48, and 56 exactly.

Factors:

20 (1,2,4,5,10,20)

48 (1,2,3,4,6,8,12,16,24,48)

56 (1,2,4,7,8,14,28,56).

Common HCF is 4.

Explanation

Texture refers to the way a surface feels or looks like it would feel if touched.

It can be rough, smooth, soft, or hard.

It is a key element in art and design.

Explanation

The proper use of watercolour as a distinct art medium began in the Renaissance period (16th century AD), particularly in Europe.

Key developments include:

Albrecht Dürer (1471–1528): Pioneered watercolour techniques in botanical and wildlife studies.

German and Northern European Artists: Used watercolours for detailed illustrations and landscapes.

Explanation

Changing the size of objects in perspective makes closer objects appear larger and distant ones smaller.

This technique creates the illusion of depth and distance in a drawing or painting.

Explanation

Giraffe, Leopard, Turtle animals naturally display polygonal patterns like spots and shells.

The shapes often resemble irregular polygons and contribute to their unique appearances.

Explanation

"Tactile" relates to the sense of touch or the ability to be felt physically.

It describes something that can be perceived through touching.

Explanation

In colour theory, tone refers to the brightness or darkness of a colour.

It is created by adjusting the lightness without changing the actual hue.

Explanation

In blocking technique, artists use basic geometrical shapes like squares, circles, and triangles.

It helps in building the basic structure and proportion of a drawing or painting.

Explanation

Origami is the Japanese art of creating shapes by folding paper.

It involves no cutting or gluing, just precise folds to form designs like animals or flowers.

Explanation

The eye level is the angle at which a viewer observes a picture or painting.

It represents the viewer’s natural line of sight when viewing the artwork.