a) angle a=18.9 degrees, side a=33.66 and side c=15.06

b) angle a=20.9 degrees, side a=13.06 and side c=33.66

c) angle a=18.9 degrees, side a=35.66 and side c=13.06

d) angle a=20.9 degrees, side a=15.06 and side c=35.66

- Thread starter ksteve
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a) angle a=18.9 degrees, side a=33.66 and side c=15.06

b) angle a=20.9 degrees, side a=13.06 and side c=33.66

c) angle a=18.9 degrees, side a=35.66 and side c=13.06

d) angle a=20.9 degrees, side a=15.06 and side c=35.66

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- Feb 4, 2004

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What law(s) have you tried? How far have you gotten? Where are you stuck?

Thank you.

Eliz.

Since all three angles of any triangle add to 180, the first thing i can find is angle A. Angle A = 180 - (angle B + angle C)

Next, i am given both angle B and angle C, and i know side b, so i can use those ratios to find side c.

side b = side c

------ -------

angle B angle C

Finally, i used a different pair of ratios to find side a.

therefore, is the correct answer choice b?

The procedure outlined is correct. What answer(s) did you get for angle A and sides a and c? Then we'll be able to say if you are right or not.ksteve said:

Since all three angles of any triangle add to 180, the first thing i can find is angle A. Angle A = 180 - (angle B + angle C)

Next, i am given both angle B and angle C, and i know side b, so i can use those ratios to find side c.

side b = side c

------ -------

angle B angle C

Finally, i used a different pair of ratios to find side a.

therefore, is the correct answer choice b?