Which of the following figures has the longest perimeter ? Options: A . &nbspA square of side 10 cm B . &nbspA rectangular of sides 12 cm and 9 cm C . &nbspA circle of radius 7 cm D . &nbspA rhombus of side 9 cm

Which of the following figures has the longest perimeter ?

Question

Which of the following figures has the longest perimeter ?

Options:

A . A square of side 10 cm

B . A rectangular of sides 12 cm and 9 cm

C . A circle of radius 7 cm

D . A rhombus of side 9 cm

Answer: Option C
(a) Perimeter = (4 × 10) cm = 40 cm
(b) Perimeter = 2(12 + 9) cm = 42 cm
(c) Perimeter = $$\left( {2 \times \frac{{22}}{7} \times 7} \right)$$ cm = 44 cm
(d) Perimeter = (4 × 9) cm = 36 cm

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