Question

father will fence a circular garden whose radius is 3.5m.How many meters of fencing material will he use

Answer 1

22 m

Explanation:

• Fencing refers to the border of the garden ⇒ circumference
• Circumference = 2πr and r = 3.5 m

Solving

• C = 2 x 22/7 x 3.5
• C = 2 x 1/2 x 22
• C = 22 m

Answer 2

• Radius=r=3.5m

Circumference:-

• 2πr
• 2π(3.5)
• 7π
• 7(3.14)
• 21.98m

He need 21.98m fencing material