Question

6. Find the radius of the circle whose area is (take n = 3.14) a) 530.66 m² b) 706.5 cm? c) 200.96 m²​

Answer 1

Answer:

(a) Radius of Circle (  r ) = 13 m  (b) Radius of Circle (  r ) = 15 cm   (c) Radius of Circle (  r ) = 8 m

Step-by-step explanation:

(a)

Given,

   Area of circle ( A ) = 530.66 m²

⇒ πr² = 530.66 m²

⇒ 3.14 × r² = 530.66 m²

⇒ r² = 530.66 m² / 3.14

⇒ r² = 169 m²

∴ r = 13 m

Radius of Circle (  r ) = 13 m

(b)

Given,

   Area of circle ( A ) = 706.5 cm²

⇒ πr² =706.5 cm²

⇒ 3.14 × r² = 530.66 m²

⇒ r² = 706.5 cm² / 3.14

⇒ r² = 225 cm²

∴ r = 15 cm

Radius of Circle (  r ) = 15 cm

(c)

Given,

   Area of circle ( A ) = 200.96 m²

⇒ πr² = 200.96 m²

⇒ 3.14 × r² = 200.96 m²

⇒ r² = 200.96 m² / 3.14

⇒ r² = 64 m²

∴ r = 8 m

Radius of Circle (  r ) = 8 m

Answer 2

Answer:

radius of circle is 8

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