# A Tangled Web

## Ângulos: de regras básicas a teoremas sobre circunferências

Resolva problemas desafiadores sobre ângulos e ajude a aranha Itzi a escalar o relógio e resgatar sua família!

• ### Ângulos em uma reta

Reconhecer que um ângulo em um ponto de um reta mede 180 graus.

• ### Calcular ângulos em volta de um ponto

Know that angles are measured in degrees and that one whole turn is 360 degrees. Calculate angles at a point.

• ### Ordenando números inteiros até 100

Decide which of two numbers from 1 to 100 is the larger. From a list of integers up to 100, arrange in ascending or descending order.

• ### Regras básicas dos ângulos

Use angles at a right angle and use perpendicular lines. Spot right angles of any orientation on a square grid. Understand the term complementary angles. Also use the rule that angles on a straight line at a specific point sum to 180. Solve problems involving straight line angles. Understand the term supplementary angles. Also use the rule that angles at a point sum to 360. Known as a full turn.

• ### Ângulos opostos

Recognise and calculate with vertically opposite angles. The term 'opposite' will be acceptable.

• ### Ângulos alternos

Understand that when parallel lines are crossed by another line, (interior) alternate angles are created. Solve problems involving the alternate angles including understanding the properties of allied angles, although this term is not examined. The term 'Z' angle is not a sufficient reason for two angles being equal.

## Como ensinar Geometria usando a Mangahigh

Gostaria de ter planos de aula com as nossas atividades?