What's the measure of one angle of a regular decagon?

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2006-10-17 13:50:40 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

144°

2006-10-17 13:53:30 · answer #1 · answered by maegical 4 · 0⤊ 0⤋

total # of degrees is
d=180*(n-2) where n is the number of sides
d=180(10-2)=180*8=1440
degrees per angle=1440/10=144 degrees

2006-10-21 16:49:46 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋

2006-10-17 20:53:00 · answer #3 · answered by Courtlyn 7 · 0⤊ 0⤋

((10 - 2) * 180)/10

2006-10-17 20:54:03 · answer #4 · answered by MathGuy 3 · 0⤊ 0⤋

http://www.ul.ie/~cahird/polyhedronmode/decagon.htm

2006-10-17 20:56:03 · answer #5 · answered by ☻Cool Beans☺ 2 · 0⤊ 0⤋