Question

Areas of some circles are given below and find their diameter

Answer 1

Answer:

Step-by-step explanation:

(1)Let the radius be r

therefore

πr² = 176

⇒ 22/7 r² = 176

⇒ r² = 176*7/22

⇒ r² = 8*7

(reducing to simplest fraction)

⇒ r = √(8*7)

⇒ r = 2√(2*7) = 2√(14)cm

Diameter of a circle = 2r

therefore diameter = 2*2√(14) = 4√(14)cm