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Four angles of a pentagon are 120, 100°, 90 and 1100. Find its fifth angle咘啊ㄒˊ命戓あ 120°, 100°, 90° air 110° 히 TUTETT

Answer»

Sum of interior angles in a Pentagon is 540.120+100+90+110+x=540x=540-420x=120°



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