## Todas as tarefas

#### 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

#### Relation of opposite angles

What’s the relation between α and β?

# Angles

Training

6

#### Angles of a triangle

Three lines create a triangle. What’s the value of angle γ?

# Angles

Reasoning

6

#### Opposite angles

If α = 45º then β = _____ º

# Angles

Learning

6