Dr. J's Maths.com
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Trigonometry - Measuring angles - finding the length of sides.
Test Yourself 1.


 

Find the length of the side indicated for each question (correct to 1 decimal place). 1.
Answer.36.4 m.		 2.
Answer.243.8 cm.
  3.
Answer.19.0 cm.		 4.
Answer.8.5 m.
  5. tan 6. cos

Find the length of the side indicated for each question (answer correct to 1 decimal place).

Note: the pronumeral could be in the denominator.

 7.
Answer.366.5 m.		 8.
Answer.37.3 cm.
  9.
Answer.25.4 cm.		 10.
Answer.283.2 m.
Problems 11. A 3 metre ladder is leaning against a wall. The angle between the ladder and the floor is 55°.

(i) How far does the ladder reach up the wall (nearest cm)?

(ii) How far is the foot of the ladder away from the wall (nearest cm)?

Answer.(i) Up the wall: 246 cm.
(ii) From the wall: 172 cm.
  12.  
  13.  
  14.  
probs denom