# <span lang="EN-US

Radius of circle, r = 3.4 cm

Perimeter of sector, P = 12.8

P = length of arc + 2× radius

Length of arc, l = P – 2×r

l = 12.8 – 2(3.4)

l = 6 cm

Let the APC be θ

As we know that,

Also ,

On Substituting the value of theta from above equation,

A = 10.2 sq. cm

Area of Sector is 10.2 sq. cm

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