Before radar and sonar, sailors would climb to the top of their ships to watch for land or changes in weather. If the lookout at
2 answers:
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Okay so in order to find the circumference we would first need to find either the diameter or radius of the circle. The perimeter of the square is 40 and each side is equal. 40/4 = 10. So the length of one side is 10. The length of one side would be the diameter of the circle.
Diameter = 10
The only thing that is left is to find the circumference.
The formulas for circumference are:
C =
d
C = 2r
So just multiply the diameter by pi (3.14)
10 x 3.14 = 31.4
or 10 (Which would be the answer to your problem)
Diameter = 10
The only thing that is left is to find the circumference.
The formulas for circumference are:
C =
C = 2
So just multiply the diameter by pi (3.14)
10 x 3.14 = 31.4
or 10
Answer:
628ft²
Step-by-step explanation:
From the diagram, we are given the following
diameter of the semicircles
2semi circles = 1 circle
Area of 2semicircles = πd²/4
Area of 2semicircles = 3.14(20)²/4
Area of 2semicircles = 3.14*400/4
Area of 2semicircles = 3.14*100
Area of 2semicircles = 314ft²
Area of the quarter circle = πd²/4 * 1/4
Area of the quarter circle = πd²/16
d = 2r
d = 2*20
d = 40ft
Area of the quarter circle = 3.14(40)²/16
Area of the quarter circle = 3.14*1600/16
Area of the quarter circle = 3.14*100
Area of the quarter circle = 314ft²
Area of the fountain = 314ft²+314ft²
Area of the fountain = 628ft²
