Question

shazli took a wire of length 44 cm and bent into acircle .what is the radius and area of the circle.if the same circle is bent into a square.what is the length of each of its sides

Answer 1

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Answer 2

Length of the wire = 44cm.

Circumference of the circle = 44cm.

Radius = $\bf\frac{c}{22π}$

$\bf\frac{44}{2×22/7}$

$\bf\frac{44×7}{2×22}$cm.

7cm.

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$\bf\therefore$ Area of circle = πr²

$\bf\frac{22}{7}$ × (7cm)².

$\bf\frac{22×7}{7}$ × 7cm².

$\bf{22×7}$ cm².

154cm².

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Perimeter of square = 144cm.

Side of square = $\bf\frac{p}{4}$

$\bf\frac{44}{4}$cm = 11cm.

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$\bf\therefore$ Area of square = $\bf{Side×side}$

$\bf{11cm×11cm}$

121cm².