Answer:
No, he should have set the sum of ∠AED and ∠DEC equal to 180°, rather then setting ∠AED and ∠DEC equal to each other.
Step-by-step explanation:
He was using the measurements of m∠AED & m∠CED, which are supplementary angles, not vertical angles (therefore making them, when combined, equal to 180°).
If they were vertical angles (at the case of m∠AED & m∠BEC, or the other pair), then yes, they will be congruent. But in this case, they are not, so you don't solve it like they are vertical angles.
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The answer is 8 I believe
Answer: The radius is 2 inches.
The circumference is approximately
12.56 inches.
Step-by-step explanation:
Given : The diameter of a dartboard = 4 inches
Since , radius is half of the diameter.
Therefore, radius of dartboard = (diameter) ÷ 2
= (4 inches ) ÷ 2 = 2 inches
Also, Formula for circumference : 
, where r is radius.
Now , Circumference of dartboard = 
Hence, The radius is 2 inches.
The circumference is approximately
12.56 inches.
#1. The square root of a number is 9 and -9
√(81) = 9 or -9
#2. Take the square root of 4,840 yards²
√(4840) = 69.57 yards
It's B, between 69 and 70 yards
Transformations, im assuming, you mean the ones with graphs on which you move things (ie, x+3; y-10)
imagine setting the table, and you need to add an extra chair for a guest, what do you do?
you transform the x and y of the stuff on one side of the table over, to make room for a new chair and set of tableware. though i dont know if thats a good example
