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The angle of a sector of a circle of radius 3.4 cm is 115...

The angle of a sector of a circle of radius 3.4 cm is 115°. Find the area of the sector.

(Takeπ=227)

A.

11.6cm2

B.

12.7cm2

C.

10.2cm2

D.

9.4cm2

Correct answer is A

\theta = 115° , radius = 3.4cm^2

Area of a sector = \frac{\theta}{360} \times \pi r^2

= \frac{115}{360} \times \frac{22}{7} \times 3.4\times 3.4

= \frac{29246.4}{2520}

= 11.6cm^2