The area of a sector of a circle of radius 5 cm, formed by an arc of length 3.5 cm is
(a) 8 cm?
(b) 8.75 cm?
(c) 9.5 cm?
(d) 7.9 cm?
​

A = 8.75 cm²

Step-by-step explanation:

Given that,

Radius, r = 5 cm

The arc length, l = 3.5 cm

We need to find the area of a sector. Let be the angle. So,

The formula for the area of sector when is in radian is  given by :

So, the area of the sector is 8.75 cm².

(b)

Step-by-step explanation:

Given

the radius of circle r=5 cm

arc length  

Arc length is also given by

Area of the sector is given by

5/12, or 5: 12

step-by-step explanation: