Answer:
468.4 meters
Step-by-step explanation:
Find the width of the rectangle.
The area of a rectangle is A=length*width. Substitute the values of length and area and solve for width.
A=length*width
8,400=140*width
60= width
Use the width of the rectangle to find the circumference of the semicircles. Since each semicircle is half of a circle, the perimeter of the two semicircles is equal to the circumference of one circle.
The circumference of a circle is equal to pid, where d is the diameter. The diameter of the semicircle is the same as the width of the rectangle.
So, the diameter is 60 meters. Substitute the diameter into the formula for the circumference and simplify using 3.14 for pi.
≈188.4
(2 times 140)+ 188.4
So, the perimeter of the track is 468.4 meters.
Answer:
x = 103
Step-by-step explanation:
Using the far right intersection, we can figure out that in inner angle is 32 degrees.
32 + 34 = 66 which is the angle of the left side of the middle cross.
x = 37 + 66 = 103
The answer is: [C]: "43" .
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Since, if one adds "5 odd integers together", the sum has to be an "odd number"; and choice, [C]: "43" , is the only "odd number" that is an answer choice given.
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The answer is 10.
This is because only one of the circles can be split into 4 sections due to their being an intersection in that circle. The rest may have both lines running through their length splitting them into 3 sections each.
Answer:
see explanation
Step-by-step explanation:
The denominators of the 2 fractions are the same, thus to compare the fractions compare the values on the numerators.
2 is less than 3, hence
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