Answer:
b = 60.26
Step-by-step explanation:
To comfortably solve for b, we employ the SINE RULE
SINE RULE:
sinA/a = sinB/b = sinC/c
Where a, b and c are the sides (length) of the triangle
Where A, B , and C are the ANGLES of the triangle.
Comparing angles to resolve for b, we have:
sinA/ a = sinB/b
sin46.7 / 44 = sin85.3 / b
Cross Multiply to solve for b, we have:
b * sin46.7 = 44 * sin85.3
b * 0.728 = 44 * 0.997
b = 43.868 / 0.728
b = 60.258
its 7: 16
4 cm
Perimeter = 18cm
θ = 2.5 radian
s = rθ, s = Arc length
Perimeter of Sector, P = arc length, s + 2r
Perimeter = rθ + 2r
r = Radius
18cm = r(2.5) + 2r
18cm = 2.5r + 2r
18cm = 4.5r
r = 18 /4.5
r = 4
