Saramiah25 Saramiah25

30-05-2021
Mathematics

contestada

Find the perimeter of this semi-circle with radius, r = 45cm.
Give your answer as an expression in terms of pi

Respuesta :

Abdullahyai Abdullahyai

30-05-2021

Answer:

45*pi

Step-by-step explanation:

Perimeter (circumference) =2*pi*R

For sine circle = 1/2*2*pi*R=pi*R=45*pi

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