Respuesta :

Answer:

(6.25[tex]\pi[/tex] + 25)cm is the exact answer

44.625 cm is an approximation

Step-by-step explanation:

c = circumference (perimeter)

d = diameter

C = [tex]\frac{\pi d}{4}[/tex]

C = [tex]\frac{25\pi }{4}[/tex] = 6.25[tex]\pi[/tex] This is the exact answer

That would be the curved part of the pi.  Then we need to add the 2 sides which would be [tex]\frac{25}{2}[/tex] + [tex]\frac{25}{2}[/tex] = [tex]\frac{50}{2}[/tex] = 25  The sides are the length of the radius which is half of the diameter.

(6.25[tex]\pi[/tex] + 25)cm is the exact answer

If we use 3.14 for [tex]\pi[/tex] The approximate answer would be:

6.25(3.14) + 25

19.625 + 25

44.625 cm is an approximation