Problem

Use the Law of Sines to solve for the remaining side(s) and angle(s) of the triangle if α=14,β=19,a=9. Round to two decimal places.

As in the text, (α,a),(β,b) and (γ,c) are angle-side opposite pairs. If no such triangle exists, enter DNE in each answer box.
γ= degrees b=c=

Answer

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Answer

Final Answer: γ=147.0 degrees, b=12.11, and c=20.26.

Steps

Step 1 :Given the angles α=14 and β=19, and the side a=9.

Step 2 :First, convert the angles from degrees to radians because the trigonometric functions work with radians.

Step 3 :Calculate γ using the formula γ=παβ because the sum of angles in a triangle is π radians.

Step 4 :Calculate b and c using the Law of Sines: b=asin(β)sin(α) and c=asin(γ)sin(α).

Step 5 :Convert γ back to degrees.

Step 6 :Round γ, b, and c to two decimal places.

Step 7 :Final Answer: γ=147.0 degrees, b=12.11, and c=20.26.

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