设这个角是x ° 180 -x + 10 = 3 (90-x) 190 -x = 270 -3x 2x =80 x =40这个角是40° 余角为140°,补角为50°
设这个角是x ° 180 -x + 10 = 3 (90-x) 190 -x = 270 -3x 2x =80 x =40