The angle of a sector of a circle radius 10.5 cm is 48o...
The angle of a sector of a circle radius 10.5 cm is 48o. Calculate the perimeter of the sector.
A.
25.4cm
B.
25.4cm
C.
25.6cm
D.
29.8cm
Correct answer is D
The lenght of Arc AB = Q360 2πr
= 48360 x 2227 x 10.5 = 48360 x 2227 x 212
= 4×22×330×8810 = 8.8cm
Perimeter = 8.8 + 2r = 8.8 + 2r
= 8.8 + 2(10.5)
= 8.8 + 21
= 29.8cm
Similar Questions
Find the value of x in the figure above ...
if tanθ = frac34, 180° < θ < 270°, find the value of cosθ....
sinθ = 1/2 and cosθ = -√3/2, what is the value of θ? ...
Tanθ is positive and Sinθ is negative. In which quadrant does θ lies ...
In the diagram above, the area of triangle ABC is 35cm2, find the value of y...