Question

find the daimeter of a circle whose area is 628 cm

Answer 1

Answer:

20√2 cm

Step-by-step explanation:

Area of circle = πd² / 4

⇒ πd² / 4 = 628 cm²

⇒ πd² = 628 × 4 = 2512 cm²

Taking π as 3.14, we get,

⇒ 3.14 d² = 2512 cm²

⇒ d² = 2512 / 3.14 cm

⇒ d² = 800 cm

⇒ d = √800 cm

⇒ d = 20√2 cm

Hence the diameter is 20√2 cm.

Answer 2

Hey Mate..
Answer is in the attachment...↗↗

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