Wednesday

March 4, 2015

March 4, 2015

Posted by **Greg** on Tuesday, November 13, 2012 at 9:45am.

alpha = 29 degrees

a = 7

c = 14

I realize I need to draw a non-right triangle and label the sides but I am completely confused one what to do after I draw the triangle

- Precalc/Triangles -
**Reiny**, Tuesday, November 13, 2012 at 10:17amUnless you were told to do so, why must it be right-angled

e.g. triangle ABC , were a=7, c=14 and angle A = 29°

(assuming you are using the convention of labeling the vertices with captital letters and the sides opposite with small letters

by Sine Law

SinC/14 = sin29/7

sinC = 14sin29/7 = .96961..

angle C = 75.8°

then angle B = 180-29-75.8 = 75.2°

and once again:

b/sinB = a/sinA

b/sin75.2 = 7/sin29

b = 13.96

(notice the triangle is "almost" isosceles)

**Answer this Question**

**Related Questions**

Precalculus with Trigonometry - Draw and solve any triangles satisfying alpha = ...

Triangles - solve any triangles satisfying alpha = 20 degrees b = 10 c = 16 b ...

math - drawing several kinds of triangles including a right triangle, than draw ...

Inverse trigonometric function - How to solve without calculator 1. sin(arctan(...

Math(Geometry) - In the diagram below(no diagram but details will be provided), ...

math - if possible,draw two isosceles triangle in which all the equal-length ...

preclac - Evaluate tan^2 60 degrees +sin^2 45 degrees without using your ...

logic - a student is using a geometry program to investigate the midsegments of ...

geometry triangles - The sides of a triangle are 8,15 and 18 the shortest side ...

geometry - Two triangles each have adjacent sides of length 120 feet and 180 ...