Answer: 5
<u>Step-by-step explanation:</u>
BA ≅ BC ⇒ ∠A ≅ ∠C
52 = y
The sum of the angles of a triangle equals 180°
∠A + ∠B + ∠C = 180
52 + 14x + 6 + 52 = 180
14x + 110 = 180
14x = 70
x = 5
Answer:
Step-by-step explanation:
Answer
Law of sines: SinB/15 = SinA/BC
B = 90
A = 180-90-21=69°
BC= (15*SinA)/SinB = (15*sin69)/1 ≈ 14m