Question 7:
In diagram below, AEC and BCD are straight lines. E is the midpoint of AC.
![](http://pt3mathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/6/2018/07/Picture120-1.png)
(a) find the value of tan x.
(b) Calculate the length, in cm, of BD.
Solution:
In diagram below, AEC and BCD are straight lines. E is the midpoint of AC.
![](http://pt3mathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/6/2018/07/Picture120-1.png)
(a) find the value of tan x.
(b) Calculate the length, in cm, of BD.
Question 8:
In diagram below, T is the midpoint of the line PR.
![](http://pt3mathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/6/2018/07/Picture118.png)
(a) Find the value of tan xo.
(b) Calculate the length, in cm, of PQ.
Solution:
In diagram below, T is the midpoint of the line PR.
![](http://pt3mathematics.blog.onlinetuition.com.my/wp-content/uploads/sites/6/2018/07/Picture118.png)
(a) Find the value of tan xo.
(b) Calculate the length, in cm, of PQ.