Color(green)(sqrt3 / 2) sin ((2pi) / 3) = sin (pi - ((2pi)/3) )= sin ((3pi - 2pi) / 3) = sin (pi)/3 sin ((pi )/3) = sin 60 = sqrt3 / 2.
As x goed up one y goes down one so rate of change is -1
Answer:
Area of the given sector = 130.9 cm²
Step-by-step explanation:
Area of a sector is given by the formula,
Area of the sector =
Area of the sector of the circle given in the picture =
=
= 130.8996
≈ 130.9 cm²