Difference between revisions of "Exterior angle"

(Created page with "<div style="float:right;"><asy>draw((0,50)--(40,1)--(0,0)--(0,50)); draw((0,50)--(0,68),linetype("0 2"),EndArrow); markscalefactor=0.4; draw(anglemark((40,1),(0,50),(0,68)),green...")
 
 
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<div style="float:right;"><asy>draw((0,50)--(40,1)--(0,0)--(0,50));
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An Exterior angle is the angle two lines form if one is extended as shown. In the figure, angle DCB is an exterior angle because its on the triangles exterior. it is [[supplementary]] to angle ACB.
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<asy>draw((0,50)--(40,1)--(0,0)--(0,50));
 
draw((0,50)--(0,68),linetype("0 2"),EndArrow);
 
draw((0,50)--(0,68),linetype("0 2"),EndArrow);
 
markscalefactor=0.4;
 
markscalefactor=0.4;
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label("C",(0,50),W);
 
label("C",(0,50),W);
 
label("D",(0,68),NW);
 
label("D",(0,68),NW);
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</asy>
An Exterior angle is the angle two lines form if one is extended as shown. In the figure, angle DCB is an exterior angle because its on the triangles exterior. it is [[supplementary]] to angle ACB.
 
 
 
 
 
*All angles in a polygon sum to 360 degrees
 

Latest revision as of 21:20, 6 August 2022

An Exterior angle is the angle two lines form if one is extended as shown. In the figure, angle DCB is an exterior angle because its on the triangles exterior. it is supplementary to angle ACB. [asy]draw((0,50)--(40,1)--(0,0)--(0,50)); draw((0,50)--(0,68),linetype("0 2"),EndArrow); markscalefactor=0.4; draw(anglemark((40,1),(0,50),(0,68)),green); label("A",(0,0),W); label("B",(40,0),NE); label("C",(0,50),W); label("D",(0,68),NW); [/asy]

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