Warm UP #5
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𝑉𝑜𝑙𝑢𝑚𝑒 𝐹𝑜𝑟𝑚𝑢𝑙𝑎𝑠
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𝐶𝑜𝑛𝑒 = 𝜋𝑟 2 ℎ
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4 3
𝑆𝑝ℎ𝑒𝑟𝑒 = 𝜋𝑟
3
TRIG IN WORD
PROBLEMS 
Tuesday, February 2nd, 2016
Angles of Elevation/Depression
How to solve: Follow the same steps!
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1: DRAW A PICTURE TO MODEL THE SITUATION!
2: Identify the angle
3: Label the sides opposite, adjacent, and hypotenuse
4: Find the ratio that corresponds to the trig function
5: Set up the trig ratio and solve for the missing angle or side
Example
Example
Example
IB Exam Question
M is the midpoint of AC. BM =60.4
A vertical mobile phone mast,
TB is built next to the field
with its base at B. The angle of elevation
of T from M is 63.4 degrees.
N is the midpoint of the mast.
Finish the remaining problems on the
worksheet….
• SHOW ALL WORK AND CALCULATIONS!
• Due by the end of class for a CLASSWORK 100pt grade!
Worksheet 3+ Extra Credit
Homework
• Pg. 404-405 #1-10