|
(1)
50° 100° 70° x 60° |
(2)
x 80° 120° 60° 50° |
|
(3)
x 100° 50° 70° 30° |
(4)
80° 80° 60° x 80° 30° |
|
(1)
50° 100° 70° x 60° 五角形の外角の和=360° ∠x=360-(50+100+70+60)=80° |
(2)
x 80° 120° 60° 50° 五角形の外角の和=360° ∠x=360-(80+120+60+50)=50° |
|
(3)
x 100° 50° 70° 30° 五角形の外角の和=360° ∠x=360-(100+50+70+30)=110° |
(4)
80° 80° 60° x 80° 30° 六角形の外角の和=360° ∠x=360-(80+80+60+80+30)=30° |