Glenn A.
asked 09/06/23Please how do you solve this?
Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that ∠A1 is smaller than ∠A2.)
b = 45, c = 44, ∠C = 36°
∠A1 = | ° | ∠A2 = | ° | |
∠B1 = | ° | ∠B2 = | ° | |
a1 = | a2 = |
1 Expert Answer
Raymond B. answered 09/06/23
Math, microeconomics or criminal justice
C=36
c=44
b=45
sinB/b = sinC/c
sinB = bsinC/c = 45sin36/44
B = arcsin(45sin36/44)= 36.95 or 180-36.95 = 143.05 degrees
B=37 degrees or 143
A=180-37-36 = 107 degrees or 180-143-36 = 1 degree
a/sinA = c/sinC =b/sinB
a = csinA/sinC = 45sin107/sin36
a= 71.6
or
a= 45sin1/sin36 = 1.3
2 possible triangles
an acute triangle is 1, 36, 143 degrees with sides 1.3, 44, 45
an obtuse triangle is 36,37, 107 degrees with sides 44,45, 71.6
largest angle is opposite the largest side
smallest angle is opposite the smallest side
b-c<a<b+c
1<a<99
a is less than the sum of the other two sides
and a is greater than the difference of the other two sides
in general there will be either 0, 1 or 2 possible triangles
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Raymond B.
you seem to have posted this twice or maybe more times. I answered your other post with an estimate that comes surprising close to the same answer here09/06/23