30°, 45° & 60° of Sine, Cosine & Tangent; More Questions
Video 7.1: 30° & 60° of Trig Ratios
Video 7.2: 45° of Trig Ratios
Video 7.3: Demo
Video 7.4: Demo
Quiz 7
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Practice Make Perfect. 多多练习，才会杰出。
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Question 1 of 8
1. Question
Find the value of the following without using a scientific calculator.
Cari nilai yang berikut dengan tidak menggunakan kalkulator saintifik.2(tan 45° – sin 30°) =
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Question 2 of 8
2. Question
Find the value of the following without using a scientific calculator.
Cari nilai yang berikut dengan tidak menggunakan kalkulator saintifik.1- sin 30° =
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Question 3 of 8
3. Question
Find the value of the following without using a scientific calculator.
Cari nilai yang berikut dengan tidak menggunakan kalkulator saintifik.
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Question 4 of 8
4. Question
Find the value of the following without using a scientific calculator.
Cari nilai berikut tanpa menggunakan kalkulator saintifik.2 tan 60° – sin 60° =
Done? Click “Yes” to check the answer.
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Question 5 of 8
5. Question
Find the value of the following without using a scientific calculator.
Cari nilai berikut tanpa menggunakan kalkulator saintifik.2 tan 45° + cos 60° =
Done? Click “Yes” to check the answer.
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Question 6 of 8
6. Question
Find the value of the following without using a scientific calculator.
Cari nilai berikut tanpa menggunakan kalkulator saintifik.3(cos 30°)² + 2(sin 45°)² =
Done? Click “Yes” to check the answer.
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Question 7 of 8
7. Question
Find the value of the following without using a scientific calculator.
Cari nilai berikut tanpa menggunakan kalkulator saintifik.(2 sin 60°)(3 cos 60°) + 3 tan 30° =
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Question 8 of 8
8. Question
Find the value of the following without using a scientific calculator.
Cari nilai berikut tanpa menggunakan kalkulator saintifik.(8 cos 45°)(sin 60°) + (8 sin 45°)(cos 30°) =
Done? Click “Yes” to check the answer.
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Video 8.1: Application Question: Find Distance between Two Boats
Video 8.2: Application Question: Finding Angle in Cuboid
Practice 2
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Practice Make Perfect. 多多练习，才会杰出。
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Question 1 of 13
1. Question
Match the following
Padankan yang berikut.
Click yes when finished to check answer.
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Question 2 of 13
2. Question
Find the values of the following with the help of a calculator. Give your answer correct to 4 decimal places.
Cari nilai berikut dengan bantuan kalkulator. Beri jawapan anda betul ke 4 tempat perpuluhan.a) tan 35.6°
b) sin 53° 27’
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a)
b)
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Question 3 of 13
3. Question
The tangent value of angle θ in this triangle is 0.6273. Find the value of angle θ. Give your answer correct to one decimal place.
Nilai tangen untuk sudut θ dalam segi tiga ini ialah 0.6273. Cari nilai sudut θ. Beri jawapan anda betul ke satu tempat perpuluhan.
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°
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Question 4 of 13
4. Question
Find value of the angle θ.
Cari nilai sudut θ.
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°
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Question 5 of 13
5. Question
Find the length of AB. Correct your answer to 2 decimal places.
Cari panjang AB. Betulkan jawapan anda ke 2 tempat perpuluhan.
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cm
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Question 6 of 13
6. Question
Find the value of θ. Give your answer correct to 2 decimal places.
Cari nilai θ. Beri jawapan anda betul ke 2 tempat perpuluhan.
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°
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Question 7 of 13
7. Question
Given that sin y = 2/5
A) Find tan x.
B) Find angle x in degree. Give your answer correct to one decimal place.
C) Find the length of AD. Give your answer correct to one decimal place.Diberi sin y = 2/5
A) Cari tan x.
B) Cari sudut x dalam darjah. Beri jawapan anda betul ke satu tempat perpuluhan.
C) Cari panjang AD. Beri jawapan anda betul ke satu tempat perpuluhan.
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A)
B) °
C) cm
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Question 8 of 13
8. Question
ABC is an isosceles triangle.
ABC ialah segitiga kaki sama.
Match the following/ Padankan yang berikut.
Click yes when finished to check answer.
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Question 9 of 13
9. Question
Building A is 35 m tall whereas building B is 47m tall. A ladder is to extend from the top of building A to the top of building B. How long should the ladder be to be able to do that? Give your answer correct to one decimal place.
Tinggi bangunan A ialah 35 m manakala tinggi bangunan B ialah 47 m. Satu tangga akan di pasang dari atas bangunan A ke atas bangunan B. Hitung panjang tangga itu. Beri jawapan anda betul ke satu tempat perpuluhan.
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m
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Question 10 of 13
10. Question
Hashim wants to know the height of the building on the opposite side of the river. The angle of elevation to the top of the building measures 73°. He then walks alongside the river bank for 15 m. The angle between the building and his original position measures of 68°. Compute the height of the building. Give your answer correct to one decimal place.
Hashim ingin tahu tinggi bangunan di sebelah sungai yang bertentangan. Sudut dongak ke puncak bangunan itu ialah 73°. Dia bergerak sebanyak 15 m di sebelah tebing sungai. Sudut antara bangunan itu dengan kedudukan asalnya ialah 68°. Hitung ketinggian bangunan itu. Beri jawapan anda betul ke satu tempat perpuluhan.
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m
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Question 11 of 13
11. Question
The ratio of the length of AE to EB is 3 : 1. Find θ. Give your answer to 3 significant figures.
Nisbah panjang AE kepada EB ialah 3 : 1. Cari θ. Beri jawapan anda kepada 3 angka bererti.
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°
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Question 12 of 13
12. Question
The diagram below is a right prism. Find the value of angle θ. Give your answer to 4 significant figures.
Rajah di bawah menunjukkan sebuah prisma tegak. Cari nilai sudut θ. Beri jawapan anda kepada 4 angka bererti.
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°
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Question 13 of 13
13. Question
The diagram below shows a pyramid with a rectangular base. Find the angle ∠AEC. Give your answer to 4 significant figures.
Rajah di bawah menunjukkan sebuah piramid dengan tapak segi empat tepat. Cari sudut ∠ AEC. Beri jawapan anda kepada 4 angka bererti.
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°
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30°, 45° & 60° of Sine, Cosine & Tangent; More Questions
Video 7.1
30° & 60° of Trig Ratios
Video 7.2
45° of Trig Ratios
Video 7.3
Demo
Video 7.4
Demo
Video 8.1
Application Question: Find Distance between 2 Boats
Video 8.2
Application Question: Find Angle in a Cuboid