Category: Mathematics

At odds with that word?
Puzzled to imagine what it looks like?
Find out by clicking on this link cuboctahedron.
Submit your answer and get your bonus.

 

Here is the three-D video simple of cuboctahedron made by Jonathan Salim (class of 2012 – 9.4) 🙂

 

https://hedy.me/wp-content/uploads/2012/05/Cuboctahedron.mov

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!