Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2008-08-28 11:29:56

Danbee
Member
Registered: 2008-08-28
Posts: 21

Solving Triangles

In ΔABC,  angle B=35 degrees and side c=10. Which value of side b will make it possible for two different triangles to be formed?

(1) b=5           (2) b=8         (3)  b=10       (4)  b=13

Please i need the solution to this problem

Thanks

Offline

#2 2008-08-29 03:29:31

TheDude
Member
Registered: 2007-10-23
Posts: 361

Re: Solving Triangles

Use the Law of Sines:

Plug in the different values of b and solve for C.  Now, in order to find a second triangle with that same value for b, you need to see if it's possible to create a triangle with a second C that will preserve the Law of Sines.  To do this simply subtract C from 180.  Determine if this second C can make a triangle or not.


Wrap it in bacon

Offline

Board footer

Powered by FluxBB