Video Pembelajaran – Trigonometry


Learn from problems below, there are 4 questions and solution in video.
Complete worksheet will be provided in class room.

QUESTION 1

Arvin is 150 meters from a wall, with angles of elevation to the bottom and the top of the flag pole being 25 degrees and 30 degrees respectively. What is the height of the flag pole? (Answer correct to one decimal place).

 

QUESTION 2

The angle of elevation from K to the top of a mountain is 14 degrees. 900 meters nearer the mountain at L the angle of elevation is 20 degrees. Find the height of the mountain. (Answer correct to two decimal places).

 

QUESTION 3

While sitting in a 3.8 meters high life guard tower, Kalvin sights a shark out at sea. Find the angle of depression from the tower to the shark if the shark is 141 meters from the base of the tower.

 

QUESTION 4

A boat leaves a port on a bearing of 150 degrees and sails for 175 km.                               a. How far is the boat now south from the port?                                                                    b. Find the true bearing of the port from the boat now!

 

Siap Try Out internal Ipeka – 5, 7 dan 9 Maret 2012

Guys,
Untuk membuat kalian semakin siap dengan soal-soal try out senin besok, kerjakanlah soal-soal dari file pdf
Lembar Soal – Siap TO Ipeka
Kunci Jawaban – Siap TO Ipeka

dengan klik web http://mathematics.hedy.me

Siapkan untuk 15 soal di hari Senin, 12 soal di hari Rabu dan 13 soal di hari Jumat, sesuai jadwal di bawah ini.

TO untuk kalian akan dilakukan dalam 3 hari @ 1 period di kelas matematika
Senin, 5 Maret 2012 (no. 1 – 15)
Rabu, 7 Maret 2012 (no. 16 – 27)
Jumat, 9 Maret 2012 (no. 28 – 40)

Ada beberapa video pembelajaran yang bisa dilihat kembali jika kalian lupa di blog ini maupun dari link mathematics. Beberapa contoh berikut ini:

Contoh persamaan garis lurus mp4

Contoh fungsi mp4

Pembuktian Rumus swf (klik link nya)

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What an illusion to think you can change the world without having first changed yourself – Carl Jung

So teach us to number our days, that we may gain a heart of wisdom – Psalm 90 : 12

Menghadapi Try Out besok 8 Feb 2012 – siapkah?

Beberapa tambahan untuk persiapan besok Try Out matematika, dapat diunduh melalui http://mathematics.hedy.me

1. Catatan tentang pengertian diagonal pada kubus atau balok

2. Video (tanpa suara) jawaban beberapa soal dari try out tahun lalu,

ini contohnya:

3. Dua tambahan soal-soal UN Prediksi 1 dan UN Prediksi 2

Wish you luck and do the best!!!