Trigonometry sides 2

Trigonometry

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1 / 19

Slide 1: Slide

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This lesson contains 19 slides, with interactive quizzes and text slides.

Items in this lesson

Trigonometry

You need your notebook, calculator and Ipad

Slide 1 - Slide

Name the mnemonic you've learned

Slide 2 - Open question

Today

Recap yesterday (15 min)
Exercise on paper (10 min)
Bettermarks (20 min)
Homework (10 min)
Bettermarks (20 min)
End lesson (5 min)

Slide 3 - Slide

Calculate ∠F
Round to 2 decimal places

Slide 4 - Open question

Calculate ∠F

Round to 2 decimal places

Slide 5 - Slide

Calculate KM

Slide 6 - Slide

Calculate KM

cos (θ) = \frac{​ a ​ ​}{​ h ​}

Slide 7 - Slide

Calculate KM

cos (66) = \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 ​}

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

cos (θ) = \frac{​ a ​ ​}{​ h ​}

Slide 10 - 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 11 - Slide

Calculate FG

Slide 12 - Slide

Calculate FG

sin (θ) = \frac{​ o ​ ​}{​ h ​}

Slide 13 - Slide

Calculate FG

sin (48) = \frac{​ 7 ​ ​}{​ F G ​}

sin (θ) = \frac{​ o ​ ​}{​ h ​}

Slide 14 - Slide

Calculate FG

0.74 . . . = \frac{​ 7 ​ ​}{​ F G ​}

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 . . . ​}

sin (48) = \frac{​ 7 ​ ​}{​ F G ​}

sin (θ) = \frac{​ o ​ ​}{​ h ​}

Slide 16 - 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 17 - 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 18 - 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 19 - Slide

Trigonometry sides 2

Items in this lesson

Slide 1 - Slide

Slide 2 - Open question

Slide 3 - Slide

Slide 4 - Open question

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Slide 6 - Slide

Slide 7 - Slide

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