Question

if a Ribbon of length 88 cm is shaped into a circle . Find the radius and area of circle . ​

Answer 1

Step-by-step explanation:

44 is a redius of h circle and 1936pai

Answer 2

Answer:

GIVEN :-

• Length of ribbon is 88 cm

TO FIND :-

• Radius and area of circle.

SOLUTION :-

$\sf \: Let \: \: the \: \: radius \: \: of \: \: circle \: \: is \: \: r \: \: cm</p><p>$

$\sf \: We \: know \: that \: total \: length \: is \: know \: as \: perimeter$

$\sf \: So \: \: perimeter \: of \: circle \: is \: called \: circumference$

$\sf \: Circumference \: of \: circle = 2\pi r$

$\sf \: Here \: given \: Circumference \: = length \: of \: ribbion \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf \: \: = 88 \: cm</p><p>$

$\sf \implies \: 2\pi r = 88$

$\sf \implies \: 2 \times \frac{22}{7} \times r = 88$

$\sf \implies \: r = \frac{88 \times 7}{2 \times 22}$

$\sf \implies \: r = 14 \: cm$

$\sf \: Now \: area \: of \: circle = {\pi}r^{2}$

$\sf \: \: \: = \frac{22}{7} ( {14)}^{2}$

$\sf \: = 22 \times 2 \times 14$

$\sf \: \: \: = 616 \: \: \: {cm}^{2}$

Radius is 14 cm and Area is 616 sq cm