Question

in the adjoining figure the radius is 3.5 cm find the perimeter of the quarter of the circle correct to one decimal place ​

Answer 1

Answer:

Step-by-step explanation:

Perimeter of these figure is =length of arc +length of 2 radius

=90/360×2×22/7+3.5 + 2×3.5=12.5

Ans= 12.5cm

Answer 2

r=3.5cm

perimeter=3.5+3.5+length of arc

perimeter=7 + 2πr×theta/360

perimeter= 7+ 2×3.14×3.5×1/4

perimeter=7+6.28×3.5/4

perimeter=7+5.495

perimeter= 12.5 cm answer

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