All Tasks

Determining the angle

The two horizontal lines are parallel to each other. Determine the angel α. α = ___ °
 
# Angles

Training
6

Relation of angles

In the image you can see two parallel lines cut by a trasversal. What’s the relation between the angles α and β?
 
# Angles

Training
6

Relation of corresponding angles

In the image you can see two parallel lines cut by a trasversal. What’s the relation between the angles α and β?
 
# Angles

Training
6

Relation of alternate angles

In the image you can see two parallel lines cut by a trasversal. What’s the relation between the angles α and β?
 
# Angles

Training
6

Angles of parallel lines

Which straight lines are parallel?
 
# Angles

Reasoning
6

Angles of a triangle

The relation between the 3 angles of a triangle is:
# Congruences & basic constructions
# Angles

Reasoning
6