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elixir [45]
3 years ago
15

Maths pi question. SEE ATTACHMENT

Mathematics
2 answers:
adelina 88 [10]3 years ago
8 0

Answer:

r = 6cm

Step-by-step explanation:

The area of a circle is given by

A = pi r^2 where r is the radius

36 pi = pi r^2

Divide each side by pi

36 pi/pi = pi r^2/ pi

36 = r^2

Take the square root of each side

sqrt(36) = sqrt(r^2)

6 =r

The radius is 6 cm

r = 6cm

Scilla [17]3 years ago
5 0

Answer:

radius, r = 6cm

Step-by-step explanation:

Area = 36 \pi \\\\\pi r^2 = 36 \pi\\r^2 = 36\\r = \sqrt{36} = 6 \ cm

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So, the answer should be 3.

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