Answer:
Option a) circle 5 meters and 22 meters
Step-by-step explanation:
We are given the following information in the question:
A pair of diameter and the circumference is given. We have to find a correct approximations for the diameter and circumference.
a) circle 5 meters and 22 meters

b) 19 inches and 50 inches

c) 33 centimeters and 80 centimeters

Thus, no pair gives a reasonable approximation. Only the circle with diameter 5 and circumference 22 meters have closest approximation.
X + 3x = 90 degrees
4x = 90
x = 22.5 degrees
20a+8-12b. Could be written as 20a-12b+8
This is what irrational means:
A number that cannot be expressed as a ratio between two integers and is not an imaginary number. If written in decimal notation, an irrational<span> number would have an infinite number of digits to the right of the decimal point, without repetition.
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so i think its the 3rd one but im not fully sure. I'm NOT that good at math
Hope this Helps!! :-)