Question

find the radius and diameter of circle whose circumference is 33cm​

Answer 1

Answer:

$given \: = circumfrence \: of \: the \: circle \: = 33cm$

$2\pi \: r \: = 33$

$2 \times \frac{22}{7} \times r \: = 33$

$r = 33 \times \frac{1}{2} \times \frac{7}{22}$

$r = 5.25 \: cm$

$d \: = 2r \: = 2 \times 5.25 = 10.5 \: cm$

$diameter \: of \: circle \: = 10.5 \: cm \\ radius \: of \: the \: circle \: = 5.25 \: cm \:$

Answer 2

r= 5.25cm , diameter= 2r= 10.5cm

Step-by-step explanation:

C = 2 π r

Solving for r

r = C/ 2π = 33/ 2×π = 5.25211cm

Diameter = 2r = 2×5.25= 10.5cm

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