Step-by-step explanation:
x⁴ − 8x² − 48 = 0
(x² + 4) (x² − 12) = 0
x = ±2i, x = ±√12
The unknown measurements of the triangle are C = 28°, c = 3.76 and b = 7.06.
<h3>Sine rule</h3>
Sine rule is used to show the relationship between sides of a triangle and the angles. It is given by:
Where a, b, c are the sides and the angles opposite the sides are A, B, C respectively.
- A + B + C = 180° (angles in a triangle)
- 62 + 90 + C = 180
- C = 28°
The unknown measurements of the triangle are C = 28°, c = 3.76 and b = 7.06.
Find out more on sine rule at: brainly.com/question/2264443