Trigonometry sides 2

Recap C11

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Slide 1: Slide

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This lesson contains 18 slides, with text slides.

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Recap C11

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Slide 1 - Slide

Today

Recap C11 (10 min)
Exercise on paper (20 min)
Exercise together (10 min)
Exercise on paper or bettermarks (25 min)
Exercise together (10 min)
End lesson (5 min)

Slide 2 - Slide

Calculate ∠F

Round to 2 decimal places

Slide 3 - Slide

Calculate KM

Slide 4 - Slide

Practice test

Work on the practice test
We're going discuss the 4th question in 20 minutes
Till 10:45
Questions about the project?

Slide 5 - Slide

Calculate KM

cos (θ) = \frac{​ a ​ ​}{​ h ​}

Slide 6 - Slide

Calculate KM

cos (66) = \frac{​ K M ​ ​}{​ 1 9 ​}

cos (θ) = \frac{​ a ​ ​}{​ h ​}

Slide 7 - Slide

Calculate KM

cos (66) = \frac{​ K M ​ ​}{​ 1 9 ​}

0.406 . . . = \frac{​ K M ​ ​}{​ 1 9 ​}

cos (θ) = \frac{​ a ​ ​}{​ h ​}

Slide 8 - Slide

Calculate KM

cos (66) = \frac{​ K M ​ ​}{​ 1 9 ​}

0.406 . . . = \frac{​ K M ​ ​}{​ 1 9 ​}

K M = 0.406 . . . \cdot 19

cos (θ) = \frac{​ a ​ ​}{​ h ​}

Slide 9 - Slide

Calculate KM

cos (66) = \frac{​ K M ​ ​}{​ 1 9 ​}

0.406 . . . = \frac{​ K M ​ ​}{​ 1 9 ​}

K M = 0.406 . . . \cdot 19

K M \approx 7.73

cos (θ) = \frac{​ a ​ ​}{​ h ​}

Slide 10 - Slide

Calculate FG

Slide 11 - Slide

Calculate FG

sin (θ) = \frac{​ o ​ ​}{​ h ​}

Slide 12 - Slide

Calculate FG

sin (48) = \frac{​ 7 ​ ​}{​ F G ​}

sin (θ) = \frac{​ o ​ ​}{​ h ​}

Slide 13 - Slide

Calculate FG

0.74 . . . = \frac{​ 7 ​ ​}{​ F G ​}

sin (48) = \frac{​ 7 ​ ​}{​ F G ​}

sin (θ) = \frac{​ o ​ ​}{​ h ​}

Slide 14 - Slide

Calculate FG

0.74 . . . = \frac{​ 7 ​ ​}{​ F G ​}

F G = \frac{​ 7 ​ ​}{​ 0 . 7 4 . . . ​}

sin (48) = \frac{​ 7 ​ ​}{​ F G ​}

sin (θ) = \frac{​ o ​ ​}{​ h ​}

Slide 15 - Slide

Calculate FG

0.74 . . . = \frac{​ 7 ​ ​}{​ F G ​}

F G = \frac{​ 7 ​ ​}{​ 0 . 7 4 . . . ​}

F G \approx 9.42

sin (48) = \frac{​ 7 ​ ​}{​ F G ​}

sin (θ) = \frac{​ o ​ ​}{​ h ​}

Slide 16 - Slide

Exercises

Question 1 & 2
Write down your name
7 minutes
Make them in silence
Write down the whole calculation (round to two decimal places)

Slide 17 - Slide

Exercises

11.2 & 11.3
20 minutes
Raise your finger if you have any questions
Finished? Start with 11.4
Communicate in English please

Slide 18 - Slide

Trigonometry sides 2

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