Asked by Israel

In trangle abc a=29,b=36,b=15.8cm find a. thank you
Answered by Israel
Please solve.the question

Answered by Damon
Please check what you typed. You have two sides called b.
Answered by oobleck
since you specify that b=15.8 cm, I assume that you meant angles
A=29° and B=36°
If so, then use the law of sines to get
a/sinA = b/sinB

You need to pay attention to your labels. The triangle is usually named by its angles, in Upper Case.
Answered by Damon
If it is angle A you want and c = 15.8 then
a*2 = 841
b^2 = 1296
c^2 = 249.64
a^2 = b^2 + c^2 - 2 b c cos A (law of cosines)
841 = 1296 + 249.64 - 2 * 36 * 15.8 cos A
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