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:
A
5/2 for line 1
5/2 for line 2
5/2 for line 3
B they are all parallel because the have equal slope
Step-by-step explanation:
explanation is in the image
that's all...have fun
Tried a whole bunch of odd sequences:
11 + 13 + 15 = 39
Nope too small.
21 + 23 + 25 = 69
Woah too big!
And after a few more trials found that:
17 + 19 + 21 = 51
Woohoo!
Answer:
She needs at least 11 pieces of accessories.
Step-by-step explanation:
She needs $200 and she has $45
200 - 45 = 155
Now she needs $155 worth of accessories and each piece is worth $15
155/15 = 10.33
then you round up to find the answer of 11 pieces of accessories.
Answer:
D. 14
Step-by-step explanation:
4a+ b - 5
4(4) + 3- 5
16+ 3 - 5
19-5 +14
