The perimeter of the entire figure is 62.8 cm.
Given, that the diameter of the inner semicircles is 9 cm and the width between the outer and inner semicircles is 2 cm.
The radius of the inner semicircle =4.5 cm and the radius of outer semicircle =5.5 cm (∵Diameter=9+2=11 cm)
We need to find the perimeter of the entire figure.
<h3>What is the perimeter?</h3>
A perimeter is a closed path that encompasses, surrounds, or outlines either a two-dimensional shape or a one-dimensional length. The perimeter of a circle or an ellipse is called its circumference.
We know that, the circumference of a semicircle=πr and the circumference of two semicircles=2πr
Thus, the circumference of inner semicircles=2×3.14×4.5=28.26 cm
The circumference of outer semicircles=2×3.14×5.5=34.54 cm
The perimeter of the entire figure=28.26+34.54=62.8 cm
Therefore, the perimeter of the entire figure is 62.8 cm.
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Answer:
20,500
Step-by-step explanation:
2,500 * 5 = 12,500
33,000 - 12,500 = 20,500
Answer:
49.29
Step-by-step explanation:
16.43x3=49.29
The answer is 22.5 you multiply the 7 and the 3
Answer:
B. Terms
Step-by-step explanation:
As they are separated by plus (+) or minus (-) they are independent terms, it means that the result of its operations are not affected by the rest of the equation.
