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Question 1

Right-angled triangle
Detailed description

a The ratio \(\dfrac{b}{10}\) =
 
  check answer for question 1a.
b The value of b correct to 4 decimal places is?
 
  check answer for question 1b.

Question 2

Triangle
Detailed description

The value of a can be found by solving the equation.

a  
  check answer for question 2a.

Question 3

The diagram is of a ladder 9 m long resting against a wall, making an angle of 55° with the ground.

Triangle
Detailed description

a The height h that the ladder reaches up the wall, correct to the nearest centimetre, is:  
 
  check answer for question 3a.
b The distance l from the foot of the ladder to the wall, correct to the nearest centimeter, is:  
   
  check answer for question 3b.