Arc length = radius* angle theta (in radians)
So angle 90 degree = 90*pi/180 radians= pi/2 radians
So arc length = 7.5* pi/2 cm = 11.8cm
So option A is correct.
Answer:
139.5 mm
Step-by-step explanation:
The area of a geometric shape with all sides of equal length is:
A (1/2)nsr
n = the number of sides
s = the length of the sides
r = the length of the apothem
The apothem is the line going from the center point of the shape to the middle of one of the sides.
A = (1/2)(5)(9)(6.2)
A = (1/2)279
A = 139.5 mm
Easy this answer is going to be 0.517 you can read and round
Answer:
21 weeks
Step-by-step explanation:
565+65=630/30=21
F(1) = 42
f(n) = f(n-1) - 5
f(2) = f(1) - 5
f(2) = 42-5
f(2) = 37
a1 = 42
a2 = 37
r = 5
PA: (42, 37, 32, 27, 22, 17, 12, 7)