# 5.2.3 Trigonometric Ratios, PT3 Focus Practice

 
        
Question 7:
 
In diagram below, AEC and BCD are straight lines. E is the midpoint of AC.
 

       
 (a) find the value of tan x.
 
(b) Calculate the length, in cm, of BD.  
 
 Solution:

       

 
        
Question 8:
 
In diagram below, T is the midpoint of the line PR.
 
 (a) Find the value of tan xo.
 (b) Calculate the length, in cm, of PQ.
 
 Solution: