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
Convert 77 to a number in base two ...
Find the value of \(\begin{vmatrix}0 & 3 & 2 \\1 & 7 & 8 \\0 & 5 & 4\end{vma...
The length of an arc of a circle of radius 5cm is 4cm. Find the area of the sector ...
In the diagram above, TR = TS and ∠TRS = 60o. Find the value of x...
The ages of Tunde and Ola are in the ratio 1:2. If the ratio of Ola's age to Musa's age is 4...
Find the determinant of the matrix A = \(\begin{pmatrix} 2 & 3 \\ 1 & 3&...