Answer:
69 degree
Step-by-step explanation:
Using cosine formula again :))
So we have
BC^2 = AB^2 + AC^2 - 2*AB*AC*cosA
BC^2 = 32^2 + 28^2 -2*28*32*cos56
BC = 28.3884 cm
So B:
AC^2 = AB^2 + BC^2 - 2*AB*BC*cosB
CosB=0.3559
B=69.14 degree
Answer:
8.5
Step-by-step explanation:
let the number be xy then
x + y = 12
y - x = 2 ( because y > x)
adding we get 2y = 14 so y = 7
and x = 12 - 7 = 5
So the number is 57.
