Helpp
You should have that website in your favourites by now lol, cos you need it here too
D
360-52 right
http://www.regentsprep.org/regents/math/geometry/gp15/circleangles.htm Number 2. Post this link with every question you post. So i don't have to keep searching for it.
26
No, the angle which you're given, is half of the arc you need to find
128-52=76
104
There are a few ways to figure out this problem. One way: can you find the length of arc YZ ?
52*2?
yes
104
so 104 for arc YZ next, the line XZ is a diameter. Half of a circle has arc length 180 degrees (from X to Z) by Y to Z is 104 what does that make X to Y ? XY + YZ = 180 XY + 104 = 180
so would it be 180-104
yes
76
yes. Another way to do this, is to see that the triangle OXY is isosceles (two sides are the radius) so the base angles are equal |dw:1466434232369:dw|
A third way. a triangle where one side is the diameter is a right triangle. (one of those interesting facts) |dw:1466434386474:dw|
Another question?
for radius it would be units squared
is a radius a line or a shape ?
This is the question ....to the nearest hundredth what is the radius of a circle with a circumference of 6
I know the answer is 0.95
ok. now is a radius a line or a shape ?
shape
shapes have length and width a radius has only length. (It is a line segment) use "units"
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