Geometry and Scale

Which of the following has one end point :

• a line

• a ray

• a line segment

• none of these

The instrument in the geomentry box having the shape of a triangle is called a :

• Protractor

• Compass

• Divider

• Set - square

What is scale drawing?

• Scale drawing is a detailed painting of an object.

• Scale drawing is a method of measuring distances in real life.

• Scale drawing is a type of photography that captures objects in their actual size.

• Scale drawing is a proportional representation of an object or area.

The scale of a map is 1 : 50. If in the map the length of an object is 4 cm, what is the actual length of the object?

• 200 cm

• 250 cm

• 500 cm

• 400 cm

What is a 2D transformation?

• A method for creating 3D models.

• A technique for color correction in 2D images.

• A process for animating characters in 2D video games.

• A mathematical operation that alters the position or size of objects in a 2D space.

Read the picture carefully and click the answer

• a

• b

• c

scale factor

• a number by which all dimensions of an original figure are multiplied to produce a new figure

• a measurement of the amount of rotation between two lines

• the amount of space an object takes up

• more than 90 degrees

scale

• the ratio between two sets of measurements

• a drawing that uses a scale to make an object smaller than or larger than the real object.

• two angles whose measures have a sum of 180 degrees

congruent

• geometric figures that are identical in size and shape

• a unit of measurement of angles. a full circle is divided into 360 degrees

• a two-dimensional shape made by drawing a curve that is always the same distance from a center

• tells the relationship between two or more things

protractor

• an instrument for drawing/measuring angles

• less than 90 degrees

• a three-dimensional object that has six rectangular faces

• 3.14