Question

the diameter of a circle is 14 cm. find the lenght of the arc, subtending an angle of 54° at the centre​

Answer 1

Answer:

l = 2.1pi/ 6.594cm

Step-by-step explanation:

We know that,

$l = r \alpha$

where,l = arc length

r = radius

$\alpha$= angle subtended by arc and radii

Here,

r = 14/2 = 7cm

$\alpha$ = 54° = 0.3pi

==> l = 7×0.3pi = 2.1pi

= 2.1×3.14

=6.594cm