A sector of a circle of a radius 6cm subrends angle of 105 at the centre of a circle.calculate the perimeter of the sector and the area of the sector?

9 answers

perimeter is the 2 radii, plus the outer arc
... 6 + 6 + [(105 / 360) * 2 * 6 * π]

area is the fraction of the circle
... (105 / 360) * π * 6^2
0 is the answer
An angle of 105 at the centre of a circle of radius 6 cm find the length of the arc and find the area of the sector
Don't get
A sector of a circle of radius 6cm subtends angle of 105 degrees at the centre of the circle. Calculate the perimeter and area of the sector
Using area of a sector which is ∅/360 × π × r²
=105/360 × 22/7 × 6×6
=105/360 × 22/7 × 36
=105×22×36/360×7
=83160/2520=33cm2
6+6+ 105/360*2*6*22/7
A sector of a circle 6cm has an angel of 1050 at the center. Calculate its
perimeter=2r+angle/360(2*22/7*r)
where r=6
angle =105
2*6+105/360=12.29
12.9(2*22/7*6)
12.29(37.71)
=463.4559
=463.46(2 d.p)