<PRE><B>Question 936688</B>
s = d/t
d = st
---
first leg distance:
b = 110*2 = 220 miles
---
second leg distance:
c = 100*1/2 = 50 miles
---
angle A between legs b and c:
40 + 80 = 120 degrees
---
use The Law of Cosines to find side a, the third side of the triangle:
---
aa = bb + cc - 2bc cosA
aa = 220*220 + 50*50 - 2*220*50*cos(120)
a = sqrt( 220*220 + 50*50 - 2*220*50*cos(120) )
a = 248.797106092
---
answer:
249 miles
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
---</PRE>