Question 1 (c)

Find the circumference of the circle with the following radius: $(T a k e π = \frac{22}{7})$
21 cm

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Solution

Given: Radius of the circle = 21 cm
Circumference of the circle = $2 π r$
$= 2 \times \frac{22}{7} \times 21 = 132 c m$

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Similar questions

Find the circumference of the circle with the following radius: $(Take π = \frac{22}{7})$

$14 c m$

π = \frac{22}{7}

21 c m

Question 3
If the circumference of a circular sheet is 154 m, find its radius. Also, find the area of the sheet. $(T a k e π = \frac{22}{7})$

Find the circumference of the circles with the following radius: (Takeπ)

(a) 14 cm (b) 28 mm (c) 21 cm

Question 2 (b)

Find the area of the following circle, given that: $(T a k e π = \frac{22}{7})$
diameter = 49 m

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