Answer:
Step-by-step explanation:
We have to find out the area of the square in order to find how many square inches were cut from the squared cloth.
Diameter = 42 in.
Radius = D / 2 = 42 / 2 = 21 in.
Area of circle = πr²
Where r = 21 in.
Area = (3.14)(21)²
Area = (3.14)(441)
Area of the circle = 1385.4 in.²
Hope this helped!
<h3>~AH1807</h3>
Answer:
88/7 ft = 12.6 ft (nearest tenth)
Step-by-step explanation:
Circumference of a circle = 2r
<u>Radius of inner circle</u>
Given:
⇒ 22 = 2 x (22/7) x r
⇒ r = 3.5
So the radius of the inner circle is 3.5 ft
<u>Radius of outer circle</u>
If the distance between the inner circle and the outer circle is 2 ft, then the radius of the outer circle = 3.5 + 2 = 5.5
<u>Circumference of outer circle</u>
Therefore, circumference of outer circle:
= 2 x (22/7) x 5.5
= 242/7 ft
<u>Difference between circumferences</u>
Difference = outer circle circumference - inner circle circumference
= 242/7 - 22
= 88/7 ft
= 12.6 ft (nearest tenth)