if the area of quadrant is 4pi sqcm,then the diameter is?
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Step-by-step explanation:
Area of the quadrant = 4π cm²
So area of the circle = 4 × (Area of quadrant)
= 4 × (4π cm²)
= 16π cm²
Formula for area of a circle = πr²
But the given area = 16π cm²
A/q πr² = 16π cm²
=> r² = 16π/π cm²
=> r² = 16 cm²
=> r = √16cm²
=> r = 4cm
Therefore the diameter is 2 × 4 cm = 8cm
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