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Sunshine447
 2 years ago
Can someone please help me "Inscribed circles to triangles"? I watched a video, but it still doesn't make sense..... The video skips a lot of the steps and I'm not sure why...... Please help me!
Sunshine447
 2 years ago
Can someone please help me "Inscribed circles to triangles"? I watched a video, but it still doesn't make sense..... The video skips a lot of the steps and I'm not sure why...... Please help me!

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CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0A circle inscribed in a triangle?

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0Like this? dw:1349651230207:dw

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0@CliffSedge yeah, that's what the lesson shows

MrMoose
 2 years ago
Best ResponseYou've already chosen the best response.0the center of the circle is equidistant from all of the sides

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0I guess I have to get perp bisectors to do it?

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0Not bisectors, but yes, you'll need perpendiculars.

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0to make the inscribed circle

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0im just reading the lesson and it says bisectors..... im so confused

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0If you want to make the circle, then you need the intersection of angle bisectors.

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0If I post an assignment can you help me with it specifically?

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0there are 7 parts, so ill post them one at a time

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0One: Construct a circle and a tangent to the circle using a compass and straightedge. (4 points) Draw three random points on your paper. Construct the circle through these three points. Determine the circle's center. Construct a tangent to the circle, using one of the original three points as the point of tangency.

MrMoose
 2 years ago
Best ResponseYou've already chosen the best response.0What do you need help with?

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0Oh, you're doing the reverse. You're starting with the circle, then circumscribing a triangle around it.

MrMoose
 2 years ago
Best ResponseYou've already chosen the best response.0I am unsure as to how I can help

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.0I guess it's like that.

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0im not really sure, but ill do something like that for part one, thanks! now part 2...

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0Two: Construct a circumscribed circle about a regular polygon using a compass and straightedge. (4 points) Choose a regular polygon from which you will draw a circumscribed circle. triangle  square  pentagon  hexagon Construct the circumscribed circle.

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0how is the circle made?

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0"Circumscribed circle" means the circle is on the outside of the polygon.

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.0It says a circle inside any of those polygons. I chose a square.

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.0@CliffSedge . Ahh yes. I get that mixes up a lot.

phi
 2 years ago
Best ResponseYou've already chosen the best response.1This seems pretty easy to follow for a circle in a triangle http://www.mathsisfun.com/geometry/constructtriangleinscribe.html notice the instructions below the "action figure"

Dido525
 2 years ago
Best ResponseYou've already chosen the best response.0Like that then I suppose?

CliffSedge
 2 years ago
Best ResponseYou've already chosen the best response.0The radius of the circle is the distance from a vertex of the polygon to the polygon's center.

phi
 2 years ago
Best ResponseYou've already chosen the best response.1For a circle through 3 points http://www.mathsisfun.com/geometry/constructcircle3pts.html

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0@phi do you have a link for circumscibing too? that helped sooo much

phi
 2 years ago
Best ResponseYou've already chosen the best response.1http://www.mathsisfun.com/geometry/constructtrianglecircum.html

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0thanks sooo much @phi can you help me with the next part too?

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0Three: Construct an inscribed circle within a regular polygon using a compass and straightedge. (4 points) Choose a regular polygon from which you will draw an inscribed circle. Note: The polygon you choose must be different from the polygon you chose in problem 2. triangle  square  pentagon  hexagon Construct the inscribed circle.

phi
 2 years ago
Best ResponseYou've already chosen the best response.1I would pick a square, and follow the same instructions as for the triangle. Bisect 2 angles and find the intersection to get the center of the circle. draw a perpendicular from the center to 1 side of the square to find the radius

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0Okay, how about Six: Explain, using complete sentences, how you can determine whether or not a circle may circumscribe a quadrilateral.

phi
 2 years ago
Best ResponseYou've already chosen the best response.1Here is the professional answer: A quadrilateral is cyclic (i.e. may be inscribed in a circle) if one side subtends congruent angles at the two opposite vertices.

phi
 2 years ago
Best ResponseYou've already chosen the best response.1How about opposite angles of a cyclic quadrilateral are supplementary (sum to 180º)

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0okay that makes much more sense lol thanks! Seven: Explain, using complete sentences, why an inscribed circle will only work within a regular polygon.

Sunshine447
 2 years ago
Best ResponseYou've already chosen the best response.0And, is there a video for this? Construct a circle and a tangent to the circle using a compass and straightedge. (4 points) Draw three random points on your paper. Construct the circle through these three points. Determine the circle's center. Construct a tangent to the circle, using one of the original three points as the point of tangency.

phi
 2 years ago
Best ResponseYou've already chosen the best response.1Construct a circle and a tangent to the circle using a compass and straightedge. draw the circle. draw a line from the center through the circle. mark the intersection. construct a perpendicular to the line through that point.

phi
 2 years ago
Best ResponseYou've already chosen the best response.1Draw three random points on your paper. Construct the circle through these three points. For a circle through 3 points http://www.mathsisfun.com/geometry/constructcircle3pts.html

phi
 2 years ago
Best ResponseYou've already chosen the best response.1Determine the circle's center. I think you have to do this do construct the circle in the first place. Construct a tangent to the circle, using one of the original three points as the point of tangency. This is the same problem as the first one: Construct a circle and a tangent to the circle using a compass and straightedge.
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