Answer:
C) 405.3 ft
Step-by-step explanation:
A triangle is a polygon with three angles and three sides. Types of triangle are scalene, isosceles, equilateral, right angled triangle.
Given a triangle with angles A, B, C and the corresponding sides directly opposite to the angles as a, b, c. The sine rule states that:
In the triangle formed by point C, ship B and ship A, we have ∠A = 82°, ∠B = 78°, c = AB = 140 ft. Hence:
∠A + ∠B + ∠C = 180° (sum of angles in a triangle)
82 + 78 + ∠C = 180
∠C + 160 = 180
∠C = 20°
Using sine rule:
a = distance from Ship B to the signal fire at point C
3y+y+6y
Notice that all these terms have the 'y' variable in them, meaning they are all like terms.
'y' by itself acts as a One, when adding it to other like terms.
3y+6y=9y
Then, add the singular y to the equation = 9y+y=10y
Answer:
1 mile=o.oo621371 meters
Step-by-step explanation: with that the answer would be 0.497097
<span>AB and CD do not intersect.</span>