Question

measure of an Arc of a circle is 80 cm and its radius its 18 cm find the length of the arc. ​

Answer 1

Answer:

Hi ,

It is given that ,

I think it may be measure of an arc ( x ) = 80°

Radius of the circle ( r ) = 18 cm

π = 3.14

Length of the arc ( l ) = ( x/360 ) × 2πr

l = ( 80/360 ) × 2 × 3.14 × 18

l = 25.12 cm

I hope this helps you.

Mark brainliest

Answer 2

Given:

• Measure of arc of circle (θ) = 80°.

• Radius (r) = 18cm.

To Find:

• Length of arc.

Formula Used:

$\star \: \boxed{\bf\red{Length \: Of \: Arc = \frac{\theta}{360} \times 2 \pi r}}$

Solution:

Substituting Values,

$:\implies\mathtt{ \frac{80}{360} \times 2 \times 3.14 \times 18}$

$:\implies\mathtt{ 3.14 \times 8}$

$:\implies\mathtt{ 25.12cm}$

$\sf\star \: \underbrace\green{25.12cm} \: \star$

Hence,

• Length of arc is 25.12cm.

ExtraShots:

• Area of circle = πr².

• Circumference of circle = 2πr

• Area of sector = θ/360 × πr².

• Area of sector = l × r / 2.

• Length of arc = θ/360 × 2πr.

• Area of rectangle = l × b.

• Area of square = (side)².

• Diagonal of square = √2 × side.

• Side of square = 1/√2 × diagonal.