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Maths pi question. SEE ATTACHMENT

Maths pi question. SEE ATTACHMENT-example-1

2 Answers

3 votes

Answer:

radius, r = 6cm

Explanation:


Area = 36 \pi \\\\\pi r^2 = 36 \pi\\r^2 = 36\\r = √(36) = 6 \ cm

User Mestkon
by
8.7k points
5 votes

Answer:

r = 6cm

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

User Laurent LAPORTE
by
7.9k points

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