Answer:
∠ ABC ≈ 137.9°
Step-by-step explanation:
Using the Cosine rule in Δ ABC
cos B =
with a = 89, b = 144, c = 65
cos B = = = , thus
B = ( - ) ≈ 137.9° ( to the nearest tenth )
Answer:
X =3.410
Step-by-step explanation:
Sin(angle) = opposite/hypotenuse
Sin(43) =x/5
0.6819 = x/5
X = 3.41
Insta: lankey.t
X = 2
y = 1
x-y=1 so 2-1=1
x+y=3 so 2+1=3. Bam.