# Unit Overview: Missing angles and lengths

## Lessons:

5 lessons

### Find the value of missing angles

In this lesson, we will be studying angles. We will use algebra and bar models to represent problems and calculate missing angles.

• 1 Quiz
• 22m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Compare and classify triangles

In this lesson, we will compare and classify triangles, looking at how to recognise the different types of triangles and the sum of the angles in a triangle.

• 2 Quizzes
• 14m Video
• Presentation(PPT)
• Worksheet
• Transcript

In this lesson, we will classify different types of quadrilateral and learn about the sum of their internal angles.

• 2 Quizzes
• 22m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Find unknown angles in triangles

In this lesson, we will represent the angles in a triangle pictorially and algebraically before learning how to calculate missing angles.

• 2 Quizzes
• 14m Video
• Presentation(PPT)
• Worksheet
• Transcript

### Find the value of missing angles in quadrilaterals

In this lesson, we will represent the angles in a quadrilateral pictorially and algebraically before learning how to calculate missing angles.

• 2 Quizzes
• 17m Video
• Presentation(PPT)
• Worksheet
• Transcript