1819 C2X §6.2

Which exercises/theories should we discuss on the board?

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Slide 1: Mind map

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This lesson contains 14 slides, with interactive quiz and text slides.

Lesson duration is: 50 min

Items in this lesson

Which exercises/theories should we discuss on the board?

Slide 1 - Mind map

Using Pythagoras' Theorem

We now know that in all right-angled triangles:

summarised in a table:

Slide 2 - Slide

How to use the table

1) If a drawing is not included: Sketch the triangle, include all known dimensions.

2) Fill in the known dimensions in the table. REMEMBER: hypotenuse in the bottom!

3) Calculate the squares of the known sides.

4) Calculate the square of the unknown side

5) Calculate the length of the unknown side by taking the square root. Give an EXACT answer.

Slide 3 - Slide

Example 1

1) Sketch:

Slide 4 - Slide

Example 1

2) Fill in known sides:

Slide 5 - Slide

Example 1

2) Fill in known sides:

Slide 6 - Slide

Example 1

3) Calculate the known squares

Slide 7 - Slide

Example 1

3) Calculate the known squares

Slide 8 - Slide

Example 1

4) Calculate the unknown square

Slide 9 - Slide

Example 1

4) Calculate the unknown square

81 - 49 = 32

Slide 10 - Slide

Example 1

5) Calculate the unknown side

Slide 11 - Slide

Example 1

5) Calculate the unknown side

Slide 12 - Slide

Other notation option

Slide 13 - Slide

Homework Friday

Make and correct §6.2

Slide 14 - Slide

1819 C2X §6.2

Items in this lesson

Slide 1 - Mind map

Slide 2 - Slide

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

Slide 6 - Slide

Slide 7 - Slide

Slide 8 - Slide

Slide 9 - Slide

Slide 10 - Slide

Slide 11 - Slide

Slide 12 - Slide

Slide 13 - Slide

Slide 14 - Slide

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