Question

what is the circumference of the circular disc of radius16 cm?​

Answer 1

Answer:

radius = 16cm

circumference = 2πr

=2×3.14×16

=2×314/100×16

=10048/100

=100.48cm

Step-by-step explanation:

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Answer 2

${\huge{\underline{\boxed{\red{\mathcal{Answer}}}}}}$

Given:

• radius = 16cm

To find:

• Circumference of the disc

Solution:

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\qbezier(2.3,0)(2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,-2.121)(0,-2.3)\qbezier(2.3,0)(2.121,-2.121)(-0,-2.3)\put(0,0){\line(1,0){2.3}}\put(0.5,0.3){\bf\large 16\ cm}\end{picture}$

$\implies \text{Circumference of the circle =} 2*\pi*r \\ \implies \text{ Circumference of the circle =} 2*3.14*16 \\ \implies \text{Circumference of the circle = }100.48 cm.$

Formula Used:

• Circumference of the circle = $2*\pi*r$

Learn More:

• Circumference of the circle = $2*\pi*r$
• Area of Circle = $\pi*r^2$
• Area of rectangle = length*breadth
• Area of square = $side^2$
• Area of triangle = $\dfrac{1}{2}*base*height$
• Perimeter of rectangle = 2*(length + breadth)
• Perimeter of square = 4*side