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The diameter of circle whose perimeter is 8.8 cm is ___________. (π = 227\frac{22}{7}722​​)
Question

The diameter of circle whose perimeter is 8.8 cm is ___________. (π = 227\frac{22}{7}​)

A.

2.8 cm

B.

1.4 cm

C.

5.6 cm

D.

0.28 cm

Correct option is A

Given:

The perimeter (circumference) of the circle = 8.8 cm

π=227\pi = \frac{22}{7}

Formula Used:

Diameter =Circumferenceπ= \frac{\text{Circumference}}{\pi}

Solution:

Diameter = 8.8227=8.8×722=61.622=2.8 cm\frac{8.8}{\frac{22}{7}} = \frac{8.8 \times 7}{22} = \frac{61.6}{22} = 2.8 \, \text{cm}

The diameter of the circle is 2.8 cm.

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