Question

Area of sector of a circle of radius 15cm is

$30cm {}^{2}$
Find length of arc
​

Answer 1

Answer:

Step-by-step explanation:

This is the solution...

Answer 2

$\large\underline{\underline{\sf Given:}}$

• Area of sector (A) = 30cm²

• Radius of circle (r) = 15cm

$\large\underline{\underline{\sf To\:Find:}}$

• Length of arc (l) = ?

$\large\underline{\underline{\sf Solution:}}$

${\boxed{\sf Area\:of\:sector(A)=\frac{1}{2}×length\:of\:arc×Radius}}$

$\large\implies{\sf 30=\frac{1}{2}×l×15 }$

$\large\implies{\sf l=\frac{30×2}{15} }$

$\large\implies{\sf l=4cm}$

$\Large\underline{\underline{\sf Answer:}}$

•°• Length of arc is 4cm.