Question

the perimeter of a quadrant of a circle of radius 7/2 cm is: a)3.5 cm b)5.5 cm c)7.5 cm d)12.5 cm

Answer 1

Answer:

d. 12.5 is the correct answer

Answer 2

Answer:

Option (D) is correct

Step-by-step explanation:

$Radius \: of \: the \: circle (r) = \frac{7}{2}\:cm$

$Perimeter \: of \: the\: quadrant\\=2r+\frac{2\pi r}{4}\\=2\times \frac{7}{2}+\frac{2\times 22\times 7}{4\times 7 \times 2}\\=7+\frac{11}{2}=\frac{14+11}{2}\\=\frac{25}{2}\\=12.5$

Therefore,

$Perimeter \: of \: the\: quadrant=12.5 \:cm$

Option (D) is correct

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