For this case we have the following system of two equations with two unknowns:
Adding both equations we have to eliminate the variable "x":
Adding common terms, keeping in mind that different signs are subtracted and the sign of the major is placed:
Answer:
Option A
Answer:
The length of the side opposite the 60 degree angle 'c' = 4
Step-by-step explanation:
<u>Step(i)</u>:-
Given data ∠A = 90° , ∠B = 60° and ∠C = 30°
Given data the length of the side opposite the 30 degree angle is 8
let 'a' = 8
<u><em>step(ii)</em></u>:-
<em>By using sine rule formula in properties of triangle</em>
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cross multiplication , we get
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<em>we know that trigonometry formulas</em>
<em>sin 30° = </em><em> and sin 90°= 1</em>
<em>C = 8 X 1/2 = 4</em>
<u><em>conclusion</em></u>:-
<em>The length of the side opposite the 60 degree angle 'c' = 4</em>
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