Answer:
25.12 yds
Step-by-step explanation:
The circumference of a circle is given by
C = 2*pi*r
C = 2 * 3.14 * 4
C =25.12 yds
Answer:
D is the answer
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
Answer: 97 degrees
Step-by-step explanation:
I drew some letters on your attachment to make it easier for you to understand.
To find angle y you need to find angle x first, you do that by doing (180=A+B+C) and you solve for A which is x degrees (A=180-B-C)
When you use angle C you must combine the 26 degrees and 55 degrees because if you use only 55 let's say, that would be the angle for triangle CDB, and we need C for triangle ABC.
So: A=180-42-81 -> A=57 degrees
Now you know Angle A (57 degrees) and Angle ACD (26 degrees)
All you have to do to find Y is to do: y=180-x-26
So y would be: 97 degrees
Keep in mind this is one of two solution methods I can see, if you want me to show you the other one as well just tell me in the comments, you are welcome.
The topic/ search query is "intercepted arcs"
The outermost angel is your far arc (135°)
The closer of the two on the circle is your near arc (missing variable "x")
The angle provided is your reference angle (39°<span>)
</span>The formula used to solve is far arc - near arc <span>÷ 2 = reference angle
</span>
So...algebra wise you'll want to reverse this equation in order to get your missing angle. Like so.
39 <span>x 2 = 78, 135 - x = 78 once again, "x" is your variable / near arc
Therefore your answer for the missing degree is 57</span>°