Question

a cooper wire in the form of a circle,encloses an area of 616 cm square,find its area.

Answer 1

Answer:

hope it helps you

Answer 2

Answer:

• The measure of perimeter of the circle is 88cm

Step-by-step explanation:

Given:

• A copper wire encloses an area of 616cm²

To Find:

• the perimeter of the circle

Formulas Used:

• Perimeter of a circle = 2πr
• Area of a circle = πr²

According to the question:

→ Area of a circle = πr²

→ 616cm² = 22/7 × r²

→ r² = 616cm² × 7 / 22

→ r² = 196cm²

→ r = √196cm²

→ r = 14cm

Henceforth:

• The radius of the circle is 14cm

Perimeter of the circle:

→ Perimeter of the circle = 2πr

→ Perimeter of the circle = 2 × 22/7 × 14cm

→ Perimeter of the circle = 44/7 × 14cm

→ Perimeter of the circle = 88cm

Therefore:

• The measure of perimeter of the circle is 88cm