Answer:uh look up a video?
Step-by-step explanation:
Answer:




Step-by-step explanation:
Given:



Solving (a): The value of y
From the given parameters, we understand that

Substitute values for RS, ST and RT

Collect Like Terms


Divide both sides by 2


Solving (b):
<em>The value of RS</em>
Substitute 6 for y in 



<em>The value of ST</em>
Substitute 6 for y in 



<em>The value of ST</em>
Substitute 6 for y in 



Answer:
C. C. C.
Step-by-step explanation:
Based on my research
Answer:
Step-by-step explanation:
take 60 degree as reference angle
using cos rule
cos 60=adjacent/hypotenuse
1/2=80/x(do cross multiplication)
80*2=x
160=x