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)
11.6cm2
12.7cm2
10.2cm2
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